21019056

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:354

約数の個数: 80

約数和(自身を含む): 57615360

約数和(自身を除く): 36596304

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 69, 79, 92, 138, 158, 184, 237, 241, 276, 316, 368, 474, 482, 552, 632, 723, 948, 964, 1104, 1264, 1446, 1817, 1896, 1928, 2892, 3634, 3792, 3856, 5451, 5543, 5784, 7268, 10902, 11086, 11568, 14536, 16629, 19039, 21804, 22172, 29072, 33258, 38078, 43608, 44344, 57117, 66516, 76156, 87216, 88688, 114234, 133032, 152312, 228468, 266064, 304624, 437897, 456936, 875794, 913872, 1313691, 1751588, 2627382, 3503176, 5254764, 7006352, 10509528, 21019056]

約数ペア:

[(1, 21019056), (2, 10509528), (3, 7006352), (4, 5254764), (6, 3503176), (8, 2627382), (12, 1751588), (16, 1313691), (23, 913872), (24, 875794), (46, 456936), (48, 437897), (69, 304624), (79, 266064), (92, 228468), (138, 152312), (158, 133032), (184, 114234), (237, 88688), (241, 87216), (276, 76156), (316, 66516), (368, 57117), (474, 44344), (482, 43608), (552, 38078), (632, 33258), (723, 29072), (948, 22172), (964, 21804), (1104, 19039), (1264, 16629), (1446, 14536), (1817, 11568), (1896, 11086), (1928, 10902), (2892, 7268), (3634, 5784), (3792, 5543), (3856, 5451)]