21254604

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{631}}^1$

素因数の和:1046

約数の個数: 48

約数和(自身を含む): 56910336

約数和(自身を除く): 35655732

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 401, 631, 802, 1203, 1262, 1604, 1893, 2406, 2524, 2807, 3786, 4417, 4812, 5614, 7572, 8421, 8834, 11228, 13251, 16842, 17668, 26502, 33684, 53004, 253031, 506062, 759093, 1012124, 1518186, 1771217, 3036372, 3542434, 5313651, 7084868, 10627302, 21254604]

約数ペア:

[(1, 21254604), (2, 10627302), (3, 7084868), (4, 5313651), (6, 3542434), (7, 3036372), (12, 1771217), (14, 1518186), (21, 1012124), (28, 759093), (42, 506062), (84, 253031), (401, 53004), (631, 33684), (802, 26502), (1203, 17668), (1262, 16842), (1604, 13251), (1893, 11228), (2406, 8834), (2524, 8421), (2807, 7572), (3786, 5614), (4417, 4812)]