18129478

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{569}}^1$

素因数の和:839

約数の個数: 16

約数和(自身を含む): 27702000

約数和(自身を除く): 9572522

約数列:

[1, 2, 89, 178, 179, 358, 569, 1138, 15931, 31862, 50641, 101282, 101851, 203702, 9064739, 18129478]

約数ペア:

[(1, 18129478), (2, 9064739), (89, 203702), (178, 101851), (179, 101282), (358, 50641), (569, 31862), (1138, 15931)]