21000591350

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{797}}^1\times {\mathrm{14243}}^1$

素因数の和:15089

約数の個数: 48

約数和(自身を含む): 40169960208

約数和(自身を除く): 19169368858

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 185, 370, 797, 925, 1594, 1850, 3985, 7970, 14243, 19925, 28486, 29489, 39850, 58978, 71215, 142430, 147445, 294890, 356075, 526991, 712150, 737225, 1053982, 1474450, 2634955, 5269910, 11351671, 13174775, 22703342, 26349550, 56758355, 113516710, 283791775, 420011827, 567583550, 840023654, 2100059135, 4200118270, 10500295675, 21000591350]

約数ペア:

[(1, 21000591350), (2, 10500295675), (5, 4200118270), (10, 2100059135), (25, 840023654), (37, 567583550), (50, 420011827), (74, 283791775), (185, 113516710), (370, 56758355), (797, 26349550), (925, 22703342), (1594, 13174775), (1850, 11351671), (3985, 5269910), (7970, 2634955), (14243, 1474450), (19925, 1053982), (28486, 737225), (29489, 712150), (39850, 526991), (58978, 356075), (71215, 294890), (142430, 147445)]