21167477540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2346727}}^1$

素因数の和:2346788

約数の個数: 48

約数和(自身を含む): 49675538304

約数和(自身を除く): 28508060764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 2255, 4510, 9020, 2346727, 4693454, 9386908, 11733635, 23467270, 25813997, 46934540, 51627994, 96215807, 103255988, 129069985, 192431614, 258139970, 384863228, 481079035, 516279940, 962158070, 1058373877, 1924316140, 2116747754, 4233495508, 5291869385, 10583738770, 21167477540]

約数ペア:

[(1, 21167477540), (2, 10583738770), (4, 5291869385), (5, 4233495508), (10, 2116747754), (11, 1924316140), (20, 1058373877), (22, 962158070), (41, 516279940), (44, 481079035), (55, 384863228), (82, 258139970), (110, 192431614), (164, 129069985), (205, 103255988), (220, 96215807), (410, 51627994), (451, 46934540), (820, 25813997), (902, 23467270), (1804, 11733635), (2255, 9386908), (4510, 4693454), (9020, 2346727)]