21859920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1$

素因数の和:429

約数の個数: 120

約数和(自身を含む): 74406696

約数和(自身を除く): 52546776

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 97, 120, 144, 180, 194, 240, 291, 313, 360, 388, 485, 582, 626, 720, 776, 873, 939, 970, 1164, 1252, 1455, 1552, 1565, 1746, 1878, 1940, 2328, 2504, 2817, 2910, 3130, 3492, 3756, 3880, 4365, 4656, 4695, 5008, 5634, 5820, 6260, 6984, 7512, 7760, 8730, 9390, 11268, 11640, 12520, 13968, 14085, 15024, 17460, 18780, 22536, 23280, 25040, 28170, 30361, 34920, 37560, 45072, 56340, 60722, 69840, 75120, 91083, 112680, 121444, 151805, 182166, 225360, 242888, 273249, 303610, 364332, 455415, 485776, 546498, 607220, 728664, 910830, 1092996, 1214440, 1366245, 1457328, 1821660, 2185992, 2428880, 2732490, 3643320, 4371984, 5464980, 7286640, 10929960, 21859920]

約数ペア:

[(1, 21859920), (2, 10929960), (3, 7286640), (4, 5464980), (5, 4371984), (6, 3643320), (8, 2732490), (9, 2428880), (10, 2185992), (12, 1821660), (15, 1457328), (16, 1366245), (18, 1214440), (20, 1092996), (24, 910830), (30, 728664), (36, 607220), (40, 546498), (45, 485776), (48, 455415), (60, 364332), (72, 303610), (80, 273249), (90, 242888), (97, 225360), (120, 182166), (144, 151805), (180, 121444), (194, 112680), (240, 91083), (291, 75120), (313, 69840), (360, 60722), (388, 56340), (485, 45072), (582, 37560), (626, 34920), (720, 30361), (776, 28170), (873, 25040), (939, 23280), (970, 22536), (1164, 18780), (1252, 17460), (1455, 15024), (1552, 14085), (1565, 13968), (1746, 12520), (1878, 11640), (1940, 11268), (2328, 9390), (2504, 8730), (2817, 7760), (2910, 7512), (3130, 6984), (3492, 6260), (3756, 5820), (3880, 5634), (4365, 5008), (4656, 4695)]