21692488

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 41670720

約数和(自身を除く): 19978232

約数列:

[1, 2, 4, 8, 71, 142, 181, 211, 284, 362, 422, 568, 724, 844, 1448, 1688, 12851, 14981, 25702, 29962, 38191, 51404, 59924, 76382, 102808, 119848, 152764, 305528, 2711561, 5423122, 10846244, 21692488]

約数ペア:

[(1, 21692488), (2, 10846244), (4, 5423122), (8, 2711561), (71, 305528), (142, 152764), (181, 119848), (211, 102808), (284, 76382), (362, 59924), (422, 51404), (568, 38191), (724, 29962), (844, 25702), (1448, 14981), (1688, 12851)]