28185855

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:631

約数の個数: 32

約数和(自身を含む): 46759680

約数和(自身を除く): 18573825

約数列:

[1, 3, 5, 15, 43, 89, 129, 215, 267, 445, 491, 645, 1335, 1473, 2455, 3827, 7365, 11481, 19135, 21113, 43699, 57405, 63339, 105565, 131097, 218495, 316695, 655485, 1879057, 5637171, 9395285, 28185855]

約数ペア:

[(1, 28185855), (3, 9395285), (5, 5637171), (15, 1879057), (43, 655485), (89, 316695), (129, 218495), (215, 131097), (267, 105565), (445, 63339), (491, 57405), (645, 43699), (1335, 21113), (1473, 19135), (2455, 11481), (3827, 7365)]