21816648

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1$

素因数の和:376

約数の個数: 128

約数和(自身を含む): 70963200

約数和(自身を除く): 49146552

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 47, 54, 56, 63, 72, 84, 94, 108, 126, 141, 168, 188, 189, 216, 252, 282, 307, 329, 376, 378, 423, 504, 564, 614, 658, 756, 846, 921, 987, 1128, 1228, 1269, 1316, 1512, 1692, 1842, 1974, 2149, 2456, 2538, 2632, 2763, 2961, 3384, 3684, 3948, 4298, 5076, 5526, 5922, 6447, 7368, 7896, 8289, 8596, 8883, 10152, 11052, 11844, 12894, 14429, 16578, 17192, 17766, 19341, 22104, 23688, 25788, 28858, 33156, 35532, 38682, 43287, 51576, 57716, 58023, 66312, 71064, 77364, 86574, 101003, 115432, 116046, 129861, 154728, 173148, 202006, 232092, 259722, 303009, 346296, 389583, 404012, 464184, 519444, 606018, 779166, 808024, 909027, 1038888, 1212036, 1558332, 1818054, 2424072, 2727081, 3116664, 3636108, 5454162, 7272216, 10908324, 21816648]

約数ペア:

[(1, 21816648), (2, 10908324), (3, 7272216), (4, 5454162), (6, 3636108), (7, 3116664), (8, 2727081), (9, 2424072), (12, 1818054), (14, 1558332), (18, 1212036), (21, 1038888), (24, 909027), (27, 808024), (28, 779166), (36, 606018), (42, 519444), (47, 464184), (54, 404012), (56, 389583), (63, 346296), (72, 303009), (84, 259722), (94, 232092), (108, 202006), (126, 173148), (141, 154728), (168, 129861), (188, 116046), (189, 115432), (216, 101003), (252, 86574), (282, 77364), (307, 71064), (329, 66312), (376, 58023), (378, 57716), (423, 51576), (504, 43287), (564, 38682), (614, 35532), (658, 33156), (756, 28858), (846, 25788), (921, 23688), (987, 22104), (1128, 19341), (1228, 17766), (1269, 17192), (1316, 16578), (1512, 14429), (1692, 12894), (1842, 11844), (1974, 11052), (2149, 10152), (2456, 8883), (2538, 8596), (2632, 8289), (2763, 7896), (2961, 7368), (3384, 6447), (3684, 5922), (3948, 5526), (4298, 5076)]