21848420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2113}}^1$

素因数の和:2180

約数の個数: 48

約数和(自身を含む): 51141888

約数和(自身を除く): 29293468

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 2068, 2113, 2585, 4226, 5170, 8452, 10340, 10565, 21130, 23243, 42260, 46486, 92972, 99311, 116215, 198622, 232430, 397244, 464860, 496555, 993110, 1092421, 1986220, 2184842, 4369684, 5462105, 10924210, 21848420]

約数ペア:

[(1, 21848420), (2, 10924210), (4, 5462105), (5, 4369684), (10, 2184842), (11, 1986220), (20, 1092421), (22, 993110), (44, 496555), (47, 464860), (55, 397244), (94, 232430), (110, 198622), (188, 116215), (220, 99311), (235, 92972), (470, 46486), (517, 42260), (940, 23243), (1034, 21130), (2068, 10565), (2113, 10340), (2585, 8452), (4226, 5170)]