21119488

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1$

素因数の和:217

約数の個数: 80

約数和(自身を含む): 48121920

約数和(自身を除く): 27002432

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 76, 104, 128, 152, 167, 208, 247, 256, 304, 334, 416, 494, 512, 608, 668, 832, 988, 1216, 1336, 1664, 1976, 2171, 2432, 2672, 3173, 3328, 3952, 4342, 4864, 5344, 6346, 6656, 7904, 8684, 9728, 10688, 12692, 15808, 17368, 21376, 25384, 31616, 34736, 41249, 42752, 50768, 63232, 69472, 82498, 85504, 101536, 126464, 138944, 164996, 203072, 277888, 329992, 406144, 555776, 659984, 812288, 1111552, 1319968, 1624576, 2639936, 5279872, 10559744, 21119488]

約数ペア:

[(1, 21119488), (2, 10559744), (4, 5279872), (8, 2639936), (13, 1624576), (16, 1319968), (19, 1111552), (26, 812288), (32, 659984), (38, 555776), (52, 406144), (64, 329992), (76, 277888), (104, 203072), (128, 164996), (152, 138944), (167, 126464), (208, 101536), (247, 85504), (256, 82498), (304, 69472), (334, 63232), (416, 50768), (494, 42752), (512, 41249), (608, 34736), (668, 31616), (832, 25384), (988, 21376), (1216, 17368), (1336, 15808), (1664, 12692), (1976, 10688), (2171, 9728), (2432, 8684), (2672, 7904), (3173, 6656), (3328, 6346), (3952, 5344), (4342, 4864)]