21419286

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:389

約数の個数: 64

約数和(自身を含む): 52462080

約数和(自身を除く): 31042794

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 102, 119, 131, 229, 238, 262, 357, 393, 458, 687, 714, 786, 917, 1374, 1603, 1834, 2227, 2751, 3206, 3893, 4454, 4809, 5502, 6681, 7786, 9618, 11679, 13362, 15589, 23358, 27251, 29999, 31178, 46767, 54502, 59998, 81753, 89997, 93534, 163506, 179994, 209993, 419986, 509983, 629979, 1019966, 1259958, 1529949, 3059898, 3569881, 7139762, 10709643, 21419286]

約数ペア:

[(1, 21419286), (2, 10709643), (3, 7139762), (6, 3569881), (7, 3059898), (14, 1529949), (17, 1259958), (21, 1019966), (34, 629979), (42, 509983), (51, 419986), (102, 209993), (119, 179994), (131, 163506), (229, 93534), (238, 89997), (262, 81753), (357, 59998), (393, 54502), (458, 46767), (687, 31178), (714, 29999), (786, 27251), (917, 23358), (1374, 15589), (1603, 13362), (1834, 11679), (2227, 9618), (2751, 7786), (3206, 6681), (3893, 5502), (4454, 4809)]