21479016

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1601}}^1$

素因数の和:1666

約数の個数: 64

約数和(自身を含む): 59209920

約数和(自身を除く): 37730904

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 43, 52, 78, 86, 104, 129, 156, 172, 258, 312, 344, 516, 559, 1032, 1118, 1601, 1677, 2236, 3202, 3354, 4472, 4803, 6404, 6708, 9606, 12808, 13416, 19212, 20813, 38424, 41626, 62439, 68843, 83252, 124878, 137686, 166504, 206529, 249756, 275372, 413058, 499512, 550744, 826116, 894959, 1652232, 1789918, 2684877, 3579836, 5369754, 7159672, 10739508, 21479016]

約数ペア:

[(1, 21479016), (2, 10739508), (3, 7159672), (4, 5369754), (6, 3579836), (8, 2684877), (12, 1789918), (13, 1652232), (24, 894959), (26, 826116), (39, 550744), (43, 499512), (52, 413058), (78, 275372), (86, 249756), (104, 206529), (129, 166504), (156, 137686), (172, 124878), (258, 83252), (312, 68843), (344, 62439), (516, 41626), (559, 38424), (1032, 20813), (1118, 19212), (1601, 13416), (1677, 12808), (2236, 9606), (3202, 6708), (3354, 6404), (4472, 4803)]