21677936

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:262

約数の個数: 80

約数和(自身を含む): 51663360

約数和(自身を除く): 29985424

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 61, 76, 112, 122, 133, 152, 167, 244, 266, 304, 334, 427, 488, 532, 668, 854, 976, 1064, 1159, 1169, 1336, 1708, 2128, 2318, 2338, 2672, 3173, 3416, 4636, 4676, 6346, 6832, 8113, 9272, 9352, 10187, 12692, 16226, 18544, 18704, 20374, 22211, 25384, 32452, 40748, 44422, 50768, 64904, 71309, 81496, 88844, 129808, 142618, 162992, 177688, 193553, 285236, 355376, 387106, 570472, 774212, 1140944, 1354871, 1548424, 2709742, 3096848, 5419484, 10838968, 21677936]

約数ペア:

[(1, 21677936), (2, 10838968), (4, 5419484), (7, 3096848), (8, 2709742), (14, 1548424), (16, 1354871), (19, 1140944), (28, 774212), (38, 570472), (56, 387106), (61, 355376), (76, 285236), (112, 193553), (122, 177688), (133, 162992), (152, 142618), (167, 129808), (244, 88844), (266, 81496), (304, 71309), (334, 64904), (427, 50768), (488, 44422), (532, 40748), (668, 32452), (854, 25384), (976, 22211), (1064, 20374), (1159, 18704), (1169, 18544), (1336, 16226), (1708, 12692), (2128, 10187), (2318, 9352), (2338, 9272), (2672, 8113), (3173, 6832), (3416, 6346), (4636, 4676)]