21945456

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:663

約数の個数: 120

約数和(自身を含む): 69735120

約数和(自身を除く): 47789664

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 36, 38, 39, 48, 52, 57, 72, 76, 78, 104, 114, 117, 144, 152, 156, 171, 208, 228, 234, 247, 304, 312, 342, 456, 468, 494, 617, 624, 684, 741, 912, 936, 988, 1234, 1368, 1482, 1851, 1872, 1976, 2223, 2468, 2736, 2964, 3702, 3952, 4446, 4936, 5553, 5928, 7404, 8021, 8892, 9872, 11106, 11723, 11856, 14808, 16042, 17784, 22212, 23446, 24063, 29616, 32084, 35169, 35568, 44424, 46892, 48126, 64168, 70338, 72189, 88848, 93784, 96252, 105507, 128336, 140676, 144378, 152399, 187568, 192504, 211014, 281352, 288756, 304798, 385008, 422028, 457197, 562704, 577512, 609596, 844056, 914394, 1155024, 1219192, 1371591, 1688112, 1828788, 2438384, 2743182, 3657576, 5486364, 7315152, 10972728, 21945456]

約数ペア:

[(1, 21945456), (2, 10972728), (3, 7315152), (4, 5486364), (6, 3657576), (8, 2743182), (9, 2438384), (12, 1828788), (13, 1688112), (16, 1371591), (18, 1219192), (19, 1155024), (24, 914394), (26, 844056), (36, 609596), (38, 577512), (39, 562704), (48, 457197), (52, 422028), (57, 385008), (72, 304798), (76, 288756), (78, 281352), (104, 211014), (114, 192504), (117, 187568), (144, 152399), (152, 144378), (156, 140676), (171, 128336), (208, 105507), (228, 96252), (234, 93784), (247, 88848), (304, 72189), (312, 70338), (342, 64168), (456, 48126), (468, 46892), (494, 44424), (617, 35568), (624, 35169), (684, 32084), (741, 29616), (912, 24063), (936, 23446), (988, 22212), (1234, 17784), (1368, 16042), (1482, 14808), (1851, 11856), (1872, 11723), (1976, 11106), (2223, 9872), (2468, 8892), (2736, 8021), (2964, 7404), (3702, 5928), (3952, 5553), (4446, 4936)]