21558010

素因数分解:

$2^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{599}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 40176000

約数和(自身を除く): 18617990

約数列:

[1, 2, 5, 10, 59, 61, 118, 122, 295, 305, 590, 599, 610, 1198, 2995, 3599, 5990, 7198, 17995, 35341, 35990, 36539, 70682, 73078, 176705, 182695, 353410, 365390, 2155801, 4311602, 10779005, 21558010]

約数ペア:

[(1, 21558010), (2, 10779005), (5, 4311602), (10, 2155801), (59, 365390), (61, 353410), (118, 182695), (122, 176705), (295, 73078), (305, 70682), (590, 36539), (599, 35990), (610, 35341), (1198, 17995), (2995, 7198), (3599, 5990)]