21003888

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{191}}^1$

素因数の和:310

約数の個数: 80

約数和(自身を含む): 57139200

約数和(自身を除く): 36135312

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 48, 58, 79, 87, 116, 158, 174, 191, 232, 237, 316, 348, 382, 464, 474, 573, 632, 696, 764, 948, 1146, 1264, 1392, 1528, 1896, 2291, 2292, 3056, 3792, 4582, 4584, 5539, 6873, 9164, 9168, 11078, 13746, 15089, 16617, 18328, 22156, 27492, 30178, 33234, 36656, 44312, 45267, 54984, 60356, 66468, 88624, 90534, 109968, 120712, 132936, 181068, 241424, 265872, 362136, 437581, 724272, 875162, 1312743, 1750324, 2625486, 3500648, 5250972, 7001296, 10501944, 21003888]

約数ペア:

[(1, 21003888), (2, 10501944), (3, 7001296), (4, 5250972), (6, 3500648), (8, 2625486), (12, 1750324), (16, 1312743), (24, 875162), (29, 724272), (48, 437581), (58, 362136), (79, 265872), (87, 241424), (116, 181068), (158, 132936), (174, 120712), (191, 109968), (232, 90534), (237, 88624), (316, 66468), (348, 60356), (382, 54984), (464, 45267), (474, 44312), (573, 36656), (632, 33234), (696, 30178), (764, 27492), (948, 22156), (1146, 18328), (1264, 16617), (1392, 15089), (1528, 13746), (1896, 11078), (2291, 9168), (2292, 9164), (3056, 6873), (3792, 5539), (4582, 4584)]