27821690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12589}}^1$

素因数の和:12626

約数の個数: 32

約数和(自身を含む): 57108240

約数和(自身を除く): 29286550

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 12589, 25178, 62945, 125890, 163657, 214013, 327314, 428026, 818285, 1070065, 1636570, 2140130, 2782169, 5564338, 13910845, 27821690]

約数ペア:

[(1, 27821690), (2, 13910845), (5, 5564338), (10, 2782169), (13, 2140130), (17, 1636570), (26, 1070065), (34, 818285), (65, 428026), (85, 327314), (130, 214013), (170, 163657), (221, 125890), (442, 62945), (1105, 25178), (2210, 12589)]