21601776

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{269}}^1$

素因数の和:526

約数の個数: 80

約数和(自身を含む): 64281600

約数和(自身を除く): 42679824

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 239, 269, 336, 478, 538, 717, 807, 956, 1076, 1434, 1614, 1673, 1883, 1912, 2152, 2868, 3228, 3346, 3766, 3824, 4304, 5019, 5649, 5736, 6456, 6692, 7532, 10038, 11298, 11472, 12912, 13384, 15064, 20076, 22596, 26768, 30128, 40152, 45192, 64291, 80304, 90384, 128582, 192873, 257164, 385746, 450037, 514328, 771492, 900074, 1028656, 1350111, 1542984, 1800148, 2700222, 3085968, 3600296, 5400444, 7200592, 10800888, 21601776]

約数ペア:

[(1, 21601776), (2, 10800888), (3, 7200592), (4, 5400444), (6, 3600296), (7, 3085968), (8, 2700222), (12, 1800148), (14, 1542984), (16, 1350111), (21, 1028656), (24, 900074), (28, 771492), (42, 514328), (48, 450037), (56, 385746), (84, 257164), (112, 192873), (168, 128582), (239, 90384), (269, 80304), (336, 64291), (478, 45192), (538, 40152), (717, 30128), (807, 26768), (956, 22596), (1076, 20076), (1434, 15064), (1614, 13384), (1673, 12912), (1883, 11472), (1912, 11298), (2152, 10038), (2868, 7532), (3228, 6692), (3346, 6456), (3766, 5736), (3824, 5649), (4304, 5019)]