21558056

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{2137}}^1$

素因数の和:2253

約数の個数: 32

約数和(自身を含む): 44000040

約数和(自身を除く): 22441984

約数列:

[1, 2, 4, 8, 13, 26, 52, 97, 104, 194, 388, 776, 1261, 2137, 2522, 4274, 5044, 8548, 10088, 17096, 27781, 55562, 111124, 207289, 222248, 414578, 829156, 1658312, 2694757, 5389514, 10779028, 21558056]

約数ペア:

[(1, 21558056), (2, 10779028), (4, 5389514), (8, 2694757), (13, 1658312), (26, 829156), (52, 414578), (97, 222248), (104, 207289), (194, 111124), (388, 55562), (776, 27781), (1261, 17096), (2137, 10088), (2522, 8548), (4274, 5044)]