21317712

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{269}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 59996160

約数和(自身を除く): 38678448

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 127, 156, 208, 254, 269, 312, 381, 508, 538, 624, 762, 807, 1016, 1076, 1524, 1614, 1651, 2032, 2152, 3048, 3228, 3302, 3497, 4304, 4953, 6096, 6456, 6604, 6994, 9906, 10491, 12912, 13208, 13988, 19812, 20982, 26416, 27976, 34163, 39624, 41964, 55952, 68326, 79248, 83928, 102489, 136652, 167856, 204978, 273304, 409956, 444119, 546608, 819912, 888238, 1332357, 1639824, 1776476, 2664714, 3552952, 5329428, 7105904, 10658856, 21317712]

約数ペア:

[(1, 21317712), (2, 10658856), (3, 7105904), (4, 5329428), (6, 3552952), (8, 2664714), (12, 1776476), (13, 1639824), (16, 1332357), (24, 888238), (26, 819912), (39, 546608), (48, 444119), (52, 409956), (78, 273304), (104, 204978), (127, 167856), (156, 136652), (208, 102489), (254, 83928), (269, 79248), (312, 68326), (381, 55952), (508, 41964), (538, 39624), (624, 34163), (762, 27976), (807, 26416), (1016, 20982), (1076, 19812), (1524, 13988), (1614, 13208), (1651, 12912), (2032, 10491), (2152, 9906), (3048, 6994), (3228, 6604), (3302, 6456), (3497, 6096), (4304, 4953)]