77789457

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{647}}^1$

素因数の和:790

約数の個数: 32

約数和(自身を含む): 118920960

約数和(自身を除く): 41131503

約数列:

[1, 3, 9, 27, 61, 73, 183, 219, 549, 647, 657, 1647, 1941, 1971, 4453, 5823, 13359, 17469, 39467, 40077, 47231, 118401, 120231, 141693, 355203, 425079, 1065609, 1275237, 2881091, 8643273, 25929819, 77789457]

約数ペア:

[(1, 77789457), (3, 25929819), (9, 8643273), (27, 2881091), (61, 1275237), (73, 1065609), (183, 425079), (219, 355203), (549, 141693), (647, 120231), (657, 118401), (1647, 47231), (1941, 40077), (1971, 39467), (4453, 17469), (5823, 13359)]