21048420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6619}}^1$

素因数の和:6684

約数の個数: 48

約数和(自身を含む): 60056640

約数和(自身を除く): 39008220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 6619, 13238, 19857, 26476, 33095, 39714, 66190, 79428, 99285, 132380, 198570, 350807, 397140, 701614, 1052421, 1403228, 1754035, 2104842, 3508070, 4209684, 5262105, 7016140, 10524210, 21048420]

約数ペア:

[(1, 21048420), (2, 10524210), (3, 7016140), (4, 5262105), (5, 4209684), (6, 3508070), (10, 2104842), (12, 1754035), (15, 1403228), (20, 1052421), (30, 701614), (53, 397140), (60, 350807), (106, 198570), (159, 132380), (212, 99285), (265, 79428), (318, 66190), (530, 39714), (636, 33095), (795, 26476), (1060, 19857), (1590, 13238), (3180, 6619)]