20913932

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4519}}^1$

素因数の和:4625

約数の個数: 24

約数和(自身を含む): 39866400

約数和(自身を除く): 18952468

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4519, 4628, 9038, 18076, 58747, 117494, 234988, 402191, 804382, 1608764, 5228483, 10456966, 20913932]

約数ペア:

[(1, 20913932), (2, 10456966), (4, 5228483), (13, 1608764), (26, 804382), (52, 402191), (89, 234988), (178, 117494), (356, 58747), (1157, 18076), (2314, 9038), (4519, 4628)]