291681929

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1511}}^1$

素因数の和:1661

約数の個数: 32

約数和(自身を含む): 383201280

約数和(自身を除く): 91519351

約数列:

[1, 7, 11, 23, 77, 109, 161, 253, 763, 1199, 1511, 1771, 2507, 8393, 10577, 16621, 17549, 27577, 34753, 116347, 164699, 193039, 243271, 382283, 1152893, 1811689, 2675981, 3788077, 12681823, 26516539, 41668847, 291681929]

約数ペア:

[(1, 291681929), (7, 41668847), (11, 26516539), (23, 12681823), (77, 3788077), (109, 2675981), (161, 1811689), (253, 1152893), (763, 382283), (1199, 243271), (1511, 193039), (1771, 164699), (2507, 116347), (8393, 34753), (10577, 27577), (16621, 17549)]