19757349

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{491}}^1$

素因数の和:777

約数の個数: 24

約数和(自身を含む): 30393792

約数和(自身を除く): 10636443

約数列:

[1, 3, 9, 17, 51, 153, 263, 491, 789, 1473, 2367, 4419, 4471, 8347, 13413, 25041, 40239, 75123, 129133, 387399, 1162197, 2195261, 6585783, 19757349]

約数ペア:

[(1, 19757349), (3, 6585783), (9, 2195261), (17, 1162197), (51, 387399), (153, 129133), (263, 75123), (491, 40239), (789, 25041), (1473, 13413), (2367, 8347), (4419, 4471)]