21981790

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{3083}}^1$

素因数の和:3144

約数の個数: 32

約数和(自身を含む): 42633216

約数和(自身を除く): 20651426

約数列:

[1, 2, 5, 10, 23, 31, 46, 62, 115, 155, 230, 310, 713, 1426, 3083, 3565, 6166, 7130, 15415, 30830, 70909, 95573, 141818, 191146, 354545, 477865, 709090, 955730, 2198179, 4396358, 10990895, 21981790]

約数ペア:

[(1, 21981790), (2, 10990895), (5, 4396358), (10, 2198179), (23, 955730), (31, 709090), (46, 477865), (62, 354545), (115, 191146), (155, 141818), (230, 95573), (310, 70909), (713, 30830), (1426, 15415), (3083, 7130), (3565, 6166)]