21303632

素因数分解:

$2^4\times 7^2\times {\mathrm{29}}^1\times {\mathrm{937}}^1$

素因数の和:988

約数の個数: 60

約数和(自身を含む): 49723380

約数和(自身を除く): 28419748

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 49, 56, 58, 98, 112, 116, 196, 203, 232, 392, 406, 464, 784, 812, 937, 1421, 1624, 1874, 2842, 3248, 3748, 5684, 6559, 7496, 11368, 13118, 14992, 22736, 26236, 27173, 45913, 52472, 54346, 91826, 104944, 108692, 183652, 190211, 217384, 367304, 380422, 434768, 734608, 760844, 1331477, 1521688, 2662954, 3043376, 5325908, 10651816, 21303632]

約数ペア:

[(1, 21303632), (2, 10651816), (4, 5325908), (7, 3043376), (8, 2662954), (14, 1521688), (16, 1331477), (28, 760844), (29, 734608), (49, 434768), (56, 380422), (58, 367304), (98, 217384), (112, 190211), (116, 183652), (196, 108692), (203, 104944), (232, 91826), (392, 54346), (406, 52472), (464, 45913), (784, 27173), (812, 26236), (937, 22736), (1421, 14992), (1624, 13118), (1874, 11368), (2842, 7496), (3248, 6559), (3748, 5684)]