21362968

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 25085672

約数列:

[1, 2, 4, 8, 11, 22, 31, 41, 44, 62, 82, 88, 124, 164, 191, 248, 328, 341, 382, 451, 682, 764, 902, 1271, 1364, 1528, 1804, 2101, 2542, 2728, 3608, 4202, 5084, 5921, 7831, 8404, 10168, 11842, 13981, 15662, 16808, 23684, 27962, 31324, 47368, 55924, 62648, 65131, 86141, 111848, 130262, 172282, 242761, 260524, 344564, 485522, 521048, 689128, 971044, 1942088, 2670371, 5340742, 10681484, 21362968]

約数ペア:

[(1, 21362968), (2, 10681484), (4, 5340742), (8, 2670371), (11, 1942088), (22, 971044), (31, 689128), (41, 521048), (44, 485522), (62, 344564), (82, 260524), (88, 242761), (124, 172282), (164, 130262), (191, 111848), (248, 86141), (328, 65131), (341, 62648), (382, 55924), (451, 47368), (682, 31324), (764, 27962), (902, 23684), (1271, 16808), (1364, 15662), (1528, 13981), (1804, 11842), (2101, 10168), (2542, 8404), (2728, 7831), (3608, 5921), (4202, 5084)]