21485308

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{859}}^1$

素因数の和:926

約数の個数: 36

約数和(自身を含む): 41863080

約数和(自身を除く): 20377772

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 169, 338, 481, 676, 859, 962, 1718, 1924, 3436, 6253, 11167, 12506, 22334, 25012, 31783, 44668, 63566, 127132, 145171, 290342, 413179, 580684, 826358, 1652716, 5371327, 10742654, 21485308]

約数ペア:

[(1, 21485308), (2, 10742654), (4, 5371327), (13, 1652716), (26, 826358), (37, 580684), (52, 413179), (74, 290342), (148, 145171), (169, 127132), (338, 63566), (481, 44668), (676, 31783), (859, 25012), (962, 22334), (1718, 12506), (1924, 11167), (3436, 6253)]