21409375428

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{277}}^1\times {\mathrm{306707}}^1$

素因数の和:307001

約数の個数: 72

約数和(自身を含む): 62072791872

約数和(自身を除く): 40663416444

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 277, 554, 831, 1108, 1662, 1939, 2493, 3324, 3878, 4986, 5817, 7756, 9972, 11634, 17451, 23268, 34902, 69804, 306707, 613414, 920121, 1226828, 1840242, 2146949, 2760363, 3680484, 4293898, 5520726, 6440847, 8587796, 11041452, 12881694, 19322541, 25763388, 38645082, 77290164, 84957839, 169915678, 254873517, 339831356, 509747034, 594704873, 764620551, 1019494068, 1189409746, 1529241102, 1784114619, 2378819492, 3058482204, 3568229238, 5352343857, 7136458476, 10704687714, 21409375428]

約数ペア:

[(1, 21409375428), (2, 10704687714), (3, 7136458476), (4, 5352343857), (6, 3568229238), (7, 3058482204), (9, 2378819492), (12, 1784114619), (14, 1529241102), (18, 1189409746), (21, 1019494068), (28, 764620551), (36, 594704873), (42, 509747034), (63, 339831356), (84, 254873517), (126, 169915678), (252, 84957839), (277, 77290164), (554, 38645082), (831, 25763388), (1108, 19322541), (1662, 12881694), (1939, 11041452), (2493, 8587796), (3324, 6440847), (3878, 5520726), (4986, 4293898), (5817, 3680484), (7756, 2760363), (9972, 2146949), (11634, 1840242), (17451, 1226828), (23268, 920121), (34902, 613414), (69804, 306707)]