21003669940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3079717}}^1$

素因数の和:3079768

約数の個数: 48

約数和(自身を含む): 49669691904

約数和(自身を除く): 28666021964

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 3079717, 6159434, 12318868, 15398585, 30797170, 33876887, 61594340, 67753774, 95471227, 135507548, 169384435, 190942454, 338768870, 381884908, 477356135, 677537740, 954712270, 1050183497, 1909424540, 2100366994, 4200733988, 5250917485, 10501834970, 21003669940]

約数ペア:

[(1, 21003669940), (2, 10501834970), (4, 5250917485), (5, 4200733988), (10, 2100366994), (11, 1909424540), (20, 1050183497), (22, 954712270), (31, 677537740), (44, 477356135), (55, 381884908), (62, 338768870), (110, 190942454), (124, 169384435), (155, 135507548), (220, 95471227), (310, 67753774), (341, 61594340), (620, 33876887), (682, 30797170), (1364, 15398585), (1705, 12318868), (3410, 6159434), (6820, 3079717)]