21340930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{983}}^1$

素因数の和:1170

約数の個数: 32

約数和(自身を含む): 41658624

約数和(自身を除く): 20317694

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 167, 334, 835, 983, 1670, 1966, 2171, 4342, 4915, 9830, 10855, 12779, 21710, 25558, 63895, 127790, 164161, 328322, 820805, 1641610, 2134093, 4268186, 10670465, 21340930]

約数ペア:

[(1, 21340930), (2, 10670465), (5, 4268186), (10, 2134093), (13, 1641610), (26, 820805), (65, 328322), (130, 164161), (167, 127790), (334, 63895), (835, 25558), (983, 21710), (1670, 12779), (1966, 10855), (2171, 9830), (4342, 4915)]