21959808

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:166

約数の個数: 128

約数和(自身を含む): 64774080

約数和(自身を除く): 42814272

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 53, 64, 78, 83, 96, 104, 106, 128, 156, 159, 166, 192, 208, 212, 249, 312, 318, 332, 384, 416, 424, 498, 624, 636, 664, 689, 832, 848, 996, 1079, 1248, 1272, 1328, 1378, 1664, 1696, 1992, 2067, 2158, 2496, 2544, 2656, 2756, 3237, 3392, 3984, 4134, 4316, 4399, 4992, 5088, 5312, 5512, 6474, 6784, 7968, 8268, 8632, 8798, 10176, 10624, 11024, 12948, 13197, 15936, 16536, 17264, 17596, 20352, 22048, 25896, 26394, 31872, 33072, 34528, 35192, 44096, 51792, 52788, 57187, 66144, 69056, 70384, 88192, 103584, 105576, 114374, 132288, 138112, 140768, 171561, 207168, 211152, 228748, 264576, 281536, 343122, 414336, 422304, 457496, 563072, 686244, 844608, 914992, 1372488, 1689216, 1829984, 2744976, 3659968, 5489952, 7319936, 10979904, 21959808]

約数ペア:

[(1, 21959808), (2, 10979904), (3, 7319936), (4, 5489952), (6, 3659968), (8, 2744976), (12, 1829984), (13, 1689216), (16, 1372488), (24, 914992), (26, 844608), (32, 686244), (39, 563072), (48, 457496), (52, 422304), (53, 414336), (64, 343122), (78, 281536), (83, 264576), (96, 228748), (104, 211152), (106, 207168), (128, 171561), (156, 140768), (159, 138112), (166, 132288), (192, 114374), (208, 105576), (212, 103584), (249, 88192), (312, 70384), (318, 69056), (332, 66144), (384, 57187), (416, 52788), (424, 51792), (498, 44096), (624, 35192), (636, 34528), (664, 33072), (689, 31872), (832, 26394), (848, 25896), (996, 22048), (1079, 20352), (1248, 17596), (1272, 17264), (1328, 16536), (1378, 15936), (1664, 13197), (1696, 12948), (1992, 11024), (2067, 10624), (2158, 10176), (2496, 8798), (2544, 8632), (2656, 8268), (2756, 7968), (3237, 6784), (3392, 6474), (3984, 5512), (4134, 5312), (4316, 5088), (4399, 4992)]