21006718530

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{409}}^1\times {\mathrm{1867}}^1$

素因数の和:2424

約数の個数: 128

約数和(自身を含む): 58231388160

約数和(自身を除く): 37224669630

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 131, 210, 262, 393, 409, 655, 786, 818, 917, 1227, 1310, 1834, 1867, 1965, 2045, 2454, 2751, 2863, 3734, 3930, 4090, 4585, 5502, 5601, 5726, 6135, 8589, 9170, 9335, 11202, 12270, 13069, 13755, 14315, 17178, 18670, 26138, 27510, 28005, 28630, 39207, 42945, 53579, 56010, 65345, 78414, 85890, 107158, 130690, 160737, 196035, 244577, 267895, 321474, 375053, 392070, 489154, 535790, 733731, 750106, 763603, 803685, 1125159, 1222885, 1467462, 1527206, 1607370, 1712039, 1875265, 2250318, 2290809, 2445770, 3424078, 3668655, 3750530, 3818015, 4581618, 5136117, 5345221, 5625795, 7337310, 7636030, 8560195, 10272234, 10690442, 11251590, 11454045, 16035663, 17120390, 22908090, 25680585, 26726105, 32071326, 51361170, 53452210, 80178315, 100031993, 160356630, 200063986, 300095979, 500159965, 600191958, 700223951, 1000319930, 1400447902, 1500479895, 2100671853, 3000959790, 3501119755, 4201343706, 7002239510, 10503359265, 21006718530]

約数ペア:

[(1, 21006718530), (2, 10503359265), (3, 7002239510), (5, 4201343706), (6, 3501119755), (7, 3000959790), (10, 2100671853), (14, 1500479895), (15, 1400447902), (21, 1000319930), (30, 700223951), (35, 600191958), (42, 500159965), (70, 300095979), (105, 200063986), (131, 160356630), (210, 100031993), (262, 80178315), (393, 53452210), (409, 51361170), (655, 32071326), (786, 26726105), (818, 25680585), (917, 22908090), (1227, 17120390), (1310, 16035663), (1834, 11454045), (1867, 11251590), (1965, 10690442), (2045, 10272234), (2454, 8560195), (2751, 7636030), (2863, 7337310), (3734, 5625795), (3930, 5345221), (4090, 5136117), (4585, 4581618), (5502, 3818015), (5601, 3750530), (5726, 3668655), (6135, 3424078), (8589, 2445770), (9170, 2290809), (9335, 2250318), (11202, 1875265), (12270, 1712039), (13069, 1607370), (13755, 1527206), (14315, 1467462), (17178, 1222885), (18670, 1125159), (26138, 803685), (27510, 763603), (28005, 750106), (28630, 733731), (39207, 535790), (42945, 489154), (53579, 392070), (56010, 375053), (65345, 321474), (78414, 267895), (85890, 244577), (107158, 196035), (130690, 160737)]