21637008

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:213

約数の個数: 120

約数和(自身を含む): 64686336

約数和(自身を除く): 43049328

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 37, 48, 62, 72, 74, 93, 111, 124, 131, 144, 148, 186, 222, 248, 262, 279, 296, 333, 372, 393, 444, 496, 524, 558, 592, 666, 744, 786, 888, 1048, 1116, 1147, 1179, 1332, 1488, 1572, 1776, 2096, 2232, 2294, 2358, 2664, 3144, 3441, 4061, 4464, 4588, 4716, 4847, 5328, 6288, 6882, 8122, 9176, 9432, 9694, 10323, 12183, 13764, 14541, 16244, 18352, 18864, 19388, 20646, 24366, 27528, 29082, 32488, 36549, 38776, 41292, 43623, 48732, 55056, 58164, 64976, 73098, 77552, 82584, 87246, 97464, 116328, 146196, 150257, 165168, 174492, 194928, 232656, 292392, 300514, 348984, 450771, 584784, 601028, 697968, 901542, 1202056, 1352313, 1803084, 2404112, 2704626, 3606168, 5409252, 7212336, 10818504, 21637008]

約数ペア:

[(1, 21637008), (2, 10818504), (3, 7212336), (4, 5409252), (6, 3606168), (8, 2704626), (9, 2404112), (12, 1803084), (16, 1352313), (18, 1202056), (24, 901542), (31, 697968), (36, 601028), (37, 584784), (48, 450771), (62, 348984), (72, 300514), (74, 292392), (93, 232656), (111, 194928), (124, 174492), (131, 165168), (144, 150257), (148, 146196), (186, 116328), (222, 97464), (248, 87246), (262, 82584), (279, 77552), (296, 73098), (333, 64976), (372, 58164), (393, 55056), (444, 48732), (496, 43623), (524, 41292), (558, 38776), (592, 36549), (666, 32488), (744, 29082), (786, 27528), (888, 24366), (1048, 20646), (1116, 19388), (1147, 18864), (1179, 18352), (1332, 16244), (1488, 14541), (1572, 13764), (1776, 12183), (2096, 10323), (2232, 9694), (2294, 9432), (2358, 9176), (2664, 8122), (3144, 6882), (3441, 6288), (4061, 5328), (4464, 4847), (4588, 4716)]