21205710

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{12401}}^1$

素因数の和:12433

約数の個数: 48

約数和(自身を含む): 58041360

約数和(自身を除く): 36835650

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 90, 95, 114, 171, 190, 285, 342, 570, 855, 1710, 12401, 24802, 37203, 62005, 74406, 111609, 124010, 186015, 223218, 235619, 372030, 471238, 558045, 706857, 1116090, 1178095, 1413714, 2120571, 2356190, 3534285, 4241142, 7068570, 10602855, 21205710]

約数ペア:

[(1, 21205710), (2, 10602855), (3, 7068570), (5, 4241142), (6, 3534285), (9, 2356190), (10, 2120571), (15, 1413714), (18, 1178095), (19, 1116090), (30, 706857), (38, 558045), (45, 471238), (57, 372030), (90, 235619), (95, 223218), (114, 186015), (171, 124010), (190, 111609), (285, 74406), (342, 62005), (570, 37203), (855, 24802), (1710, 12401)]