21101210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8543}}^1$

素因数の和:8582

約数の個数: 32

約数和(自身を含む): 43061760

約数和(自身を除く): 21960550

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8543, 17086, 42715, 85430, 111059, 162317, 222118, 324634, 555295, 811585, 1110590, 1623170, 2110121, 4220242, 10550605, 21101210]

約数ペア:

[(1, 21101210), (2, 10550605), (5, 4220242), (10, 2110121), (13, 1623170), (19, 1110590), (26, 811585), (38, 555295), (65, 324634), (95, 222118), (130, 162317), (190, 111059), (247, 85430), (494, 42715), (1235, 17086), (2470, 8543)]