660388869

素因数分解:

$3^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{24781}}^1$

素因数の和:24847

約数の個数: 40

約数和(自身を含む): 1151470848

約数和(自身を除く): 491081979

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 81, 141, 189, 329, 423, 567, 987, 1269, 2961, 3807, 8883, 24781, 26649, 74343, 173467, 223029, 520401, 669087, 1164707, 1561203, 2007261, 3494121, 4683609, 8152949, 10482363, 14050827, 24458847, 31447089, 73376541, 94341267, 220129623, 660388869]

約数ペア:

[(1, 660388869), (3, 220129623), (7, 94341267), (9, 73376541), (21, 31447089), (27, 24458847), (47, 14050827), (63, 10482363), (81, 8152949), (141, 4683609), (189, 3494121), (329, 2007261), (423, 1561203), (567, 1164707), (987, 669087), (1269, 520401), (2961, 223029), (3807, 173467), (8883, 74343), (24781, 26649)]