21243276

素因数分解:

$2^2\times 3^3\times {\mathrm{239}}^1\times {\mathrm{823}}^1$

素因数の和:1075

約数の個数: 48

約数和(自身を含む): 55372800

約数和(自身を除く): 34129524

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 239, 478, 717, 823, 956, 1434, 1646, 2151, 2469, 2868, 3292, 4302, 4938, 6453, 7407, 8604, 9876, 12906, 14814, 22221, 25812, 29628, 44442, 88884, 196697, 393394, 590091, 786788, 1180182, 1770273, 2360364, 3540546, 5310819, 7081092, 10621638, 21243276]

約数ペア:

[(1, 21243276), (2, 10621638), (3, 7081092), (4, 5310819), (6, 3540546), (9, 2360364), (12, 1770273), (18, 1180182), (27, 786788), (36, 590091), (54, 393394), (108, 196697), (239, 88884), (478, 44442), (717, 29628), (823, 25812), (956, 22221), (1434, 14814), (1646, 12906), (2151, 9876), (2469, 8604), (2868, 7407), (3292, 6453), (4302, 4938)]