20211690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 50798592

約数和(自身を除く): 30586902

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 103, 155, 186, 206, 211, 309, 310, 422, 465, 515, 618, 633, 930, 1030, 1055, 1266, 1545, 2110, 3090, 3165, 3193, 6330, 6386, 6541, 9579, 13082, 15965, 19158, 19623, 21733, 31930, 32705, 39246, 43466, 47895, 65199, 65410, 95790, 98115, 108665, 130398, 196230, 217330, 325995, 651990, 673723, 1347446, 2021169, 3368615, 4042338, 6737230, 10105845, 20211690]

約数ペア:

[(1, 20211690), (2, 10105845), (3, 6737230), (5, 4042338), (6, 3368615), (10, 2021169), (15, 1347446), (30, 673723), (31, 651990), (62, 325995), (93, 217330), (103, 196230), (155, 130398), (186, 108665), (206, 98115), (211, 95790), (309, 65410), (310, 65199), (422, 47895), (465, 43466), (515, 39246), (618, 32705), (633, 31930), (930, 21733), (1030, 19623), (1055, 19158), (1266, 15965), (1545, 13082), (2110, 9579), (3090, 6541), (3165, 6386), (3193, 6330)]