21798700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:200

約数の個数: 144

約数和(自身を含む): 62496000

約数和(自身を除く): 40697300

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 25, 28, 35, 38, 44, 50, 55, 70, 76, 77, 95, 100, 110, 133, 140, 149, 154, 175, 190, 209, 220, 266, 275, 298, 308, 350, 380, 385, 418, 475, 532, 550, 596, 665, 700, 745, 770, 836, 950, 1043, 1045, 1100, 1330, 1463, 1490, 1540, 1639, 1900, 1925, 2086, 2090, 2660, 2831, 2926, 2980, 3278, 3325, 3725, 3850, 4172, 4180, 5215, 5225, 5662, 5852, 6556, 6650, 7315, 7450, 7700, 8195, 10430, 10450, 11324, 11473, 13300, 14155, 14630, 14900, 16390, 19817, 20860, 20900, 22946, 26075, 28310, 29260, 31141, 32780, 36575, 39634, 40975, 45892, 52150, 56620, 57365, 62282, 70775, 73150, 79268, 81950, 99085, 104300, 114730, 124564, 141550, 146300, 155705, 163900, 198170, 217987, 229460, 283100, 286825, 311410, 396340, 435974, 495425, 573650, 622820, 778525, 871948, 990850, 1089935, 1147300, 1557050, 1981700, 2179870, 3114100, 4359740, 5449675, 10899350, 21798700]

約数ペア:

[(1, 21798700), (2, 10899350), (4, 5449675), (5, 4359740), (7, 3114100), (10, 2179870), (11, 1981700), (14, 1557050), (19, 1147300), (20, 1089935), (22, 990850), (25, 871948), (28, 778525), (35, 622820), (38, 573650), (44, 495425), (50, 435974), (55, 396340), (70, 311410), (76, 286825), (77, 283100), (95, 229460), (100, 217987), (110, 198170), (133, 163900), (140, 155705), (149, 146300), (154, 141550), (175, 124564), (190, 114730), (209, 104300), (220, 99085), (266, 81950), (275, 79268), (298, 73150), (308, 70775), (350, 62282), (380, 57365), (385, 56620), (418, 52150), (475, 45892), (532, 40975), (550, 39634), (596, 36575), (665, 32780), (700, 31141), (745, 29260), (770, 28310), (836, 26075), (950, 22946), (1043, 20900), (1045, 20860), (1100, 19817), (1330, 16390), (1463, 14900), (1490, 14630), (1540, 14155), (1639, 13300), (1900, 11473), (1925, 11324), (2086, 10450), (2090, 10430), (2660, 8195), (2831, 7700), (2926, 7450), (2980, 7315), (3278, 6650), (3325, 6556), (3725, 5852), (3850, 5662), (4172, 5225), (4180, 5215)]