21385730

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{541}}^1$

素因数の和:674

約数の個数: 32

約数和(自身を含む): 39804480

約数和(自身を除く): 18418750

約数列:

[1, 2, 5, 10, 59, 67, 118, 134, 295, 335, 541, 590, 670, 1082, 2705, 3953, 5410, 7906, 19765, 31919, 36247, 39530, 63838, 72494, 159595, 181235, 319190, 362470, 2138573, 4277146, 10692865, 21385730]

約数ペア:

[(1, 21385730), (2, 10692865), (5, 4277146), (10, 2138573), (59, 362470), (67, 319190), (118, 181235), (134, 159595), (295, 72494), (335, 63838), (541, 39530), (590, 36247), (670, 31919), (1082, 19765), (2705, 7906), (3953, 5410)]