21908484

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^3\times {\mathrm{277}}^1$

素因数の和:326

約数の個数: 72

約数和(自身を含む): 60209240

約数和(自身を除く): 38300756

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 169, 234, 277, 338, 468, 507, 554, 676, 831, 1014, 1108, 1521, 1662, 2028, 2197, 2493, 3042, 3324, 3601, 4394, 4986, 6084, 6591, 7202, 8788, 9972, 10803, 13182, 14404, 19773, 21606, 26364, 32409, 39546, 43212, 46813, 64818, 79092, 93626, 129636, 140439, 187252, 280878, 421317, 561756, 608569, 842634, 1217138, 1685268, 1825707, 2434276, 3651414, 5477121, 7302828, 10954242, 21908484]

約数ペア:

[(1, 21908484), (2, 10954242), (3, 7302828), (4, 5477121), (6, 3651414), (9, 2434276), (12, 1825707), (13, 1685268), (18, 1217138), (26, 842634), (36, 608569), (39, 561756), (52, 421317), (78, 280878), (117, 187252), (156, 140439), (169, 129636), (234, 93626), (277, 79092), (338, 64818), (468, 46813), (507, 43212), (554, 39546), (676, 32409), (831, 26364), (1014, 21606), (1108, 19773), (1521, 14404), (1662, 13182), (2028, 10803), (2197, 9972), (2493, 8788), (3042, 7202), (3324, 6591), (3601, 6084), (4394, 4986)]