18910636

素因数分解:

$2^2\times {\mathrm{131}}^1\times {\mathrm{151}}^1\times {\mathrm{239}}^1$

素因数の和:525

約数の個数: 24

約数和(自身を含む): 33707520

約数和(自身を除く): 14796884

約数列:

[1, 2, 4, 131, 151, 239, 262, 302, 478, 524, 604, 956, 19781, 31309, 36089, 39562, 62618, 72178, 79124, 125236, 144356, 4727659, 9455318, 18910636]

約数ペア:

[(1, 18910636), (2, 9455318), (4, 4727659), (131, 144356), (151, 125236), (239, 79124), (262, 72178), (302, 62618), (478, 39562), (524, 36089), (604, 31309), (956, 19781)]