21005796

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{2213}}^1$

素因数の和:2340

約数の個数: 48

約数和(自身を含む): 56536704

約数和(自身を除く): 35530908

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 113, 226, 339, 452, 678, 791, 1356, 1582, 2213, 2373, 3164, 4426, 4746, 6639, 8852, 9492, 13278, 15491, 26556, 30982, 46473, 61964, 92946, 185892, 250069, 500138, 750207, 1000276, 1500414, 1750483, 3000828, 3500966, 5251449, 7001932, 10502898, 21005796]

約数ペア:

[(1, 21005796), (2, 10502898), (3, 7001932), (4, 5251449), (6, 3500966), (7, 3000828), (12, 1750483), (14, 1500414), (21, 1000276), (28, 750207), (42, 500138), (84, 250069), (113, 185892), (226, 92946), (339, 61964), (452, 46473), (678, 30982), (791, 26556), (1356, 15491), (1582, 13278), (2213, 9492), (2373, 8852), (3164, 6639), (4426, 4746)]