21450512

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{733}}^1$

素因数の和:831

約数の個数: 40

約数和(自身を含む): 43687680

約数和(自身を除く): 22237168

約数列:

[1, 2, 4, 8, 16, 31, 59, 62, 118, 124, 236, 248, 472, 496, 733, 944, 1466, 1829, 2932, 3658, 5864, 7316, 11728, 14632, 22723, 29264, 43247, 45446, 86494, 90892, 172988, 181784, 345976, 363568, 691952, 1340657, 2681314, 5362628, 10725256, 21450512]

約数ペア:

[(1, 21450512), (2, 10725256), (4, 5362628), (8, 2681314), (16, 1340657), (31, 691952), (59, 363568), (62, 345976), (118, 181784), (124, 172988), (236, 90892), (248, 86494), (472, 45446), (496, 43247), (733, 29264), (944, 22723), (1466, 14632), (1829, 11728), (2932, 7316), (3658, 5864)]