21000681201

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1\times {\mathrm{437159}}^1$

素因数の和:437468

約数の個数: 16

約数和(自身を含む): 28537804800

約数和(自身を除く): 7537123599

約数列:

[1, 3, 67, 201, 239, 717, 16013, 48039, 437159, 1311477, 29289653, 87868959, 104481001, 313443003, 7000227067, 21000681201]

約数ペア:

[(1, 21000681201), (3, 7000227067), (67, 313443003), (201, 104481001), (239, 87868959), (717, 29289653), (16013, 1311477), (48039, 437159)]