40640697

素因数分解:

$3^4\times {\mathrm{179}}^1\times {\mathrm{2803}}^1$

素因数の和:2994

約数の個数: 20

約数和(自身を含む): 61071120

約数和(自身を除く): 20430423

約数列:

[1, 3, 9, 27, 81, 179, 537, 1611, 2803, 4833, 8409, 14499, 25227, 75681, 227043, 501737, 1505211, 4515633, 13546899, 40640697]

約数ペア:

[(1, 40640697), (3, 13546899), (9, 4515633), (27, 1505211), (81, 501737), (179, 227043), (537, 75681), (1611, 25227), (2803, 14499), (4833, 8409)]