21539544

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:201

約数の個数: 128

約数和(自身を含む): 63866880

約数和(自身を除く): 42327336

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 31, 34, 39, 51, 52, 62, 68, 78, 93, 102, 104, 124, 131, 136, 156, 186, 204, 221, 248, 262, 312, 372, 393, 403, 408, 442, 524, 527, 663, 744, 786, 806, 884, 1048, 1054, 1209, 1326, 1572, 1581, 1612, 1703, 1768, 2108, 2227, 2418, 2652, 3144, 3162, 3224, 3406, 4061, 4216, 4454, 4836, 5109, 5304, 6324, 6681, 6812, 6851, 8122, 8908, 9672, 10218, 12183, 12648, 13362, 13624, 13702, 16244, 17816, 20436, 20553, 24366, 26724, 27404, 28951, 32488, 40872, 41106, 48732, 52793, 53448, 54808, 57902, 69037, 82212, 86853, 97464, 105586, 115804, 138074, 158379, 164424, 173706, 207111, 211172, 231608, 276148, 316758, 347412, 414222, 422344, 552296, 633516, 694824, 828444, 897481, 1267032, 1656888, 1794962, 2692443, 3589924, 5384886, 7179848, 10769772, 21539544]

約数ペア:

[(1, 21539544), (2, 10769772), (3, 7179848), (4, 5384886), (6, 3589924), (8, 2692443), (12, 1794962), (13, 1656888), (17, 1267032), (24, 897481), (26, 828444), (31, 694824), (34, 633516), (39, 552296), (51, 422344), (52, 414222), (62, 347412), (68, 316758), (78, 276148), (93, 231608), (102, 211172), (104, 207111), (124, 173706), (131, 164424), (136, 158379), (156, 138074), (186, 115804), (204, 105586), (221, 97464), (248, 86853), (262, 82212), (312, 69037), (372, 57902), (393, 54808), (403, 53448), (408, 52793), (442, 48732), (524, 41106), (527, 40872), (663, 32488), (744, 28951), (786, 27404), (806, 26724), (884, 24366), (1048, 20553), (1054, 20436), (1209, 17816), (1326, 16244), (1572, 13702), (1581, 13624), (1612, 13362), (1703, 12648), (1768, 12183), (2108, 10218), (2227, 9672), (2418, 8908), (2652, 8122), (3144, 6851), (3162, 6812), (3224, 6681), (3406, 6324), (4061, 5304), (4216, 5109), (4454, 4836)]