21258784232

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{42929}}^1$

素因数の和:43218

約数の個数: 64

約数和(自身を含む): 46982592000

約数和(自身を除く): 25723807768

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 239, 259, 296, 478, 518, 956, 1036, 1673, 1912, 2072, 3346, 6692, 8843, 13384, 17686, 35372, 42929, 61901, 70744, 85858, 123802, 171716, 247604, 300503, 343432, 495208, 601006, 1202012, 1588373, 2404024, 3176746, 6353492, 10260031, 11118611, 12706984, 20520062, 22237222, 41040124, 44474444, 71820217, 82080248, 88948888, 143640434, 287280868, 379621147, 574561736, 759242294, 1518484588, 2657348029, 3036969176, 5314696058, 10629392116, 21258784232]

約数ペア:

[(1, 21258784232), (2, 10629392116), (4, 5314696058), (7, 3036969176), (8, 2657348029), (14, 1518484588), (28, 759242294), (37, 574561736), (56, 379621147), (74, 287280868), (148, 143640434), (239, 88948888), (259, 82080248), (296, 71820217), (478, 44474444), (518, 41040124), (956, 22237222), (1036, 20520062), (1673, 12706984), (1912, 11118611), (2072, 10260031), (3346, 6353492), (6692, 3176746), (8843, 2404024), (13384, 1588373), (17686, 1202012), (35372, 601006), (42929, 495208), (61901, 343432), (70744, 300503), (85858, 247604), (123802, 171716)]