21672378

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:260

約数の個数: 96

約数和(自身を含む): 58810752

約数和(自身を除く): 37138374

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 101, 117, 126, 131, 182, 202, 234, 262, 273, 303, 393, 546, 606, 707, 786, 819, 909, 917, 1179, 1313, 1414, 1638, 1703, 1818, 1834, 2121, 2358, 2626, 2751, 3406, 3939, 4242, 5109, 5502, 6363, 7878, 8253, 9191, 10218, 11817, 11921, 12726, 13231, 15327, 16506, 18382, 23634, 23842, 26462, 27573, 30654, 35763, 39693, 55146, 71526, 79386, 82719, 92617, 107289, 119079, 165438, 172003, 185234, 214578, 238158, 277851, 344006, 516009, 555702, 833553, 1032018, 1204021, 1548027, 1667106, 2408042, 3096054, 3612063, 7224126, 10836189, 21672378]

約数ペア:

[(1, 21672378), (2, 10836189), (3, 7224126), (6, 3612063), (7, 3096054), (9, 2408042), (13, 1667106), (14, 1548027), (18, 1204021), (21, 1032018), (26, 833553), (39, 555702), (42, 516009), (63, 344006), (78, 277851), (91, 238158), (101, 214578), (117, 185234), (126, 172003), (131, 165438), (182, 119079), (202, 107289), (234, 92617), (262, 82719), (273, 79386), (303, 71526), (393, 55146), (546, 39693), (606, 35763), (707, 30654), (786, 27573), (819, 26462), (909, 23842), (917, 23634), (1179, 18382), (1313, 16506), (1414, 15327), (1638, 13231), (1703, 12726), (1818, 11921), (1834, 11817), (2121, 10218), (2358, 9191), (2626, 8253), (2751, 7878), (3406, 6363), (3939, 5502), (4242, 5109)]