21474144

素因数分解:

$2^5\times 3^2\times {\mathrm{173}}^1\times {\mathrm{431}}^1$

素因数の和:620

約数の個数: 72

約数和(自身を含む): 61562592

約数和(自身を除く): 40088448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 173, 288, 346, 431, 519, 692, 862, 1038, 1293, 1384, 1557, 1724, 2076, 2586, 2768, 3114, 3448, 3879, 4152, 5172, 5536, 6228, 6896, 7758, 8304, 10344, 12456, 13792, 15516, 16608, 20688, 24912, 31032, 41376, 49824, 62064, 74563, 124128, 149126, 223689, 298252, 447378, 596504, 671067, 894756, 1193008, 1342134, 1789512, 2386016, 2684268, 3579024, 5368536, 7158048, 10737072, 21474144]

約数ペア:

[(1, 21474144), (2, 10737072), (3, 7158048), (4, 5368536), (6, 3579024), (8, 2684268), (9, 2386016), (12, 1789512), (16, 1342134), (18, 1193008), (24, 894756), (32, 671067), (36, 596504), (48, 447378), (72, 298252), (96, 223689), (144, 149126), (173, 124128), (288, 74563), (346, 62064), (431, 49824), (519, 41376), (692, 31032), (862, 24912), (1038, 20688), (1293, 16608), (1384, 15516), (1557, 13792), (1724, 12456), (2076, 10344), (2586, 8304), (2768, 7758), (3114, 6896), (3448, 6228), (3879, 5536), (4152, 5172)]