21421167248

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{269}}^1\times {\mathrm{2213}}^1$

素因数の和:2676

約数の個数: 80

約数和(自身を含む): 45141954480

約数和(自身を除く): 23720787232

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 173, 208, 269, 346, 538, 692, 1076, 1384, 2152, 2213, 2249, 2768, 3497, 4304, 4426, 4498, 6994, 8852, 8996, 13988, 17704, 17992, 27976, 28769, 35408, 35984, 46537, 55952, 57538, 93074, 115076, 186148, 230152, 372296, 382849, 460304, 595297, 604981, 744592, 765698, 1190594, 1209962, 1531396, 2381188, 2419924, 3062792, 4762376, 4839848, 4977037, 6125584, 7738861, 9524752, 9679696, 9954074, 15477722, 19908148, 30955444, 39816296, 61910888, 79632592, 102986381, 123821776, 205972762, 411945524, 823891048, 1338822953, 1647782096, 2677645906, 5355291812, 10710583624, 21421167248]

約数ペア:

[(1, 21421167248), (2, 10710583624), (4, 5355291812), (8, 2677645906), (13, 1647782096), (16, 1338822953), (26, 823891048), (52, 411945524), (104, 205972762), (173, 123821776), (208, 102986381), (269, 79632592), (346, 61910888), (538, 39816296), (692, 30955444), (1076, 19908148), (1384, 15477722), (2152, 9954074), (2213, 9679696), (2249, 9524752), (2768, 7738861), (3497, 6125584), (4304, 4977037), (4426, 4839848), (4498, 4762376), (6994, 3062792), (8852, 2419924), (8996, 2381188), (13988, 1531396), (17704, 1209962), (17992, 1190594), (27976, 765698), (28769, 744592), (35408, 604981), (35984, 595297), (46537, 460304), (55952, 382849), (57538, 372296), (93074, 230152), (115076, 186148)]