21030828

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19259}}^1$

素因数の和:19286

約数の個数: 48

約数和(自身を含む): 60399360

約数和(自身を除く): 39368532

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 19259, 38518, 57777, 77036, 115554, 134813, 231108, 250367, 269626, 404439, 500734, 539252, 751101, 808878, 1001468, 1502202, 1617756, 1752569, 3004404, 3505138, 5257707, 7010276, 10515414, 21030828]

約数ペア:

[(1, 21030828), (2, 10515414), (3, 7010276), (4, 5257707), (6, 3505138), (7, 3004404), (12, 1752569), (13, 1617756), (14, 1502202), (21, 1001468), (26, 808878), (28, 751101), (39, 539252), (42, 500734), (52, 404439), (78, 269626), (84, 250367), (91, 231108), (156, 134813), (182, 115554), (273, 77036), (364, 57777), (546, 38518), (1092, 19259)]