21530430

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7717}}^1$

素因数の和:7761

約数の個数: 48

約数和(自身を含む): 57792384

約数和(自身を除く): 36261954

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7717, 15434, 23151, 38585, 46302, 69453, 77170, 115755, 138906, 231510, 239227, 347265, 478454, 694530, 717681, 1196135, 1435362, 2153043, 2392270, 3588405, 4306086, 7176810, 10765215, 21530430]

約数ペア:

[(1, 21530430), (2, 10765215), (3, 7176810), (5, 4306086), (6, 3588405), (9, 2392270), (10, 2153043), (15, 1435362), (18, 1196135), (30, 717681), (31, 694530), (45, 478454), (62, 347265), (90, 239227), (93, 231510), (155, 138906), (186, 115755), (279, 77170), (310, 69453), (465, 46302), (558, 38585), (930, 23151), (1395, 15434), (2790, 7717)]