21073130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{937}}^1$

素因数の和:1130

約数の個数: 32

約数和(自身を含む): 41129424

約数和(自身を除く): 20056294

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 173, 346, 865, 937, 1730, 1874, 2249, 4498, 4685, 9370, 11245, 12181, 22490, 24362, 60905, 121810, 162101, 324202, 810505, 1621010, 2107313, 4214626, 10536565, 21073130]

約数ペア:

[(1, 21073130), (2, 10536565), (5, 4214626), (10, 2107313), (13, 1621010), (26, 810505), (65, 324202), (130, 162101), (173, 121810), (346, 60905), (865, 24362), (937, 22490), (1730, 12181), (1874, 11245), (2249, 9370), (4498, 4685)]