21353880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{177949}}^1$

素因数の和:177963

約数の個数: 32

約数和(自身を含む): 64062000

約数和(自身を除く): 42708120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 177949, 355898, 533847, 711796, 889745, 1067694, 1423592, 1779490, 2135388, 2669235, 3558980, 4270776, 5338470, 7117960, 10676940, 21353880]

約数ペア:

[(1, 21353880), (2, 10676940), (3, 7117960), (4, 5338470), (5, 4270776), (6, 3558980), (8, 2669235), (10, 2135388), (12, 1779490), (15, 1423592), (20, 1067694), (24, 889745), (30, 711796), (40, 533847), (60, 355898), (120, 177949)]