21263265968

素因数分解:

$2^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{70289}}^1$

素因数の和:70414

約数の個数: 80

約数和(自身を含む): 49018559040

約数和(自身を除く): 27755293072

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 37, 56, 73, 74, 112, 146, 148, 259, 292, 296, 511, 518, 584, 592, 1022, 1036, 1168, 2044, 2072, 2701, 4088, 4144, 5402, 8176, 10804, 18907, 21608, 37814, 43216, 70289, 75628, 140578, 151256, 281156, 302512, 492023, 562312, 984046, 1124624, 1968092, 2600693, 3936184, 5131097, 5201386, 7872368, 10262194, 10402772, 18204851, 20524388, 20805544, 35917679, 36409702, 41048776, 41611088, 71835358, 72819404, 82097552, 143670716, 145638808, 189850589, 287341432, 291277616, 379701178, 574682864, 759402356, 1328954123, 1518804712, 2657908246, 3037609424, 5315816492, 10631632984, 21263265968]

約数ペア:

[(1, 21263265968), (2, 10631632984), (4, 5315816492), (7, 3037609424), (8, 2657908246), (14, 1518804712), (16, 1328954123), (28, 759402356), (37, 574682864), (56, 379701178), (73, 291277616), (74, 287341432), (112, 189850589), (146, 145638808), (148, 143670716), (259, 82097552), (292, 72819404), (296, 71835358), (511, 41611088), (518, 41048776), (584, 36409702), (592, 35917679), (1022, 20805544), (1036, 20524388), (1168, 18204851), (2044, 10402772), (2072, 10262194), (2701, 7872368), (4088, 5201386), (4144, 5131097), (5402, 3936184), (8176, 2600693), (10804, 1968092), (18907, 1124624), (21608, 984046), (37814, 562312), (43216, 492023), (70289, 302512), (75628, 281156), (140578, 151256)]