21303504

素因数分解:

$2^4\times 3^2\times {\mathrm{239}}^1\times {\mathrm{619}}^1$

素因数の和:872

約数の個数: 60

約数和(自身を含む): 59966400

約数和(自身を除く): 38662896

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 239, 478, 619, 717, 956, 1238, 1434, 1857, 1912, 2151, 2476, 2868, 3714, 3824, 4302, 4952, 5571, 5736, 7428, 8604, 9904, 11142, 11472, 14856, 17208, 22284, 29712, 34416, 44568, 89136, 147941, 295882, 443823, 591764, 887646, 1183528, 1331469, 1775292, 2367056, 2662938, 3550584, 5325876, 7101168, 10651752, 21303504]

約数ペア:

[(1, 21303504), (2, 10651752), (3, 7101168), (4, 5325876), (6, 3550584), (8, 2662938), (9, 2367056), (12, 1775292), (16, 1331469), (18, 1183528), (24, 887646), (36, 591764), (48, 443823), (72, 295882), (144, 147941), (239, 89136), (478, 44568), (619, 34416), (717, 29712), (956, 22284), (1238, 17208), (1434, 14856), (1857, 11472), (1912, 11142), (2151, 9904), (2476, 8604), (2868, 7428), (3714, 5736), (3824, 5571), (4302, 4952)]