21912748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1321}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 46640160

約数和(自身を除く): 24727412

約数列:

[1, 2, 4, 11, 13, 22, 26, 29, 44, 52, 58, 116, 143, 286, 319, 377, 572, 638, 754, 1276, 1321, 1508, 2642, 4147, 5284, 8294, 14531, 16588, 17173, 29062, 34346, 38309, 58124, 68692, 76618, 153236, 188903, 377806, 421399, 498017, 755612, 842798, 996034, 1685596, 1992068, 5478187, 10956374, 21912748]

約数ペア:

[(1, 21912748), (2, 10956374), (4, 5478187), (11, 1992068), (13, 1685596), (22, 996034), (26, 842798), (29, 755612), (44, 498017), (52, 421399), (58, 377806), (116, 188903), (143, 153236), (286, 76618), (319, 68692), (377, 58124), (572, 38309), (638, 34346), (754, 29062), (1276, 17173), (1321, 16588), (1508, 14531), (2642, 8294), (4147, 5284)]