21498230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2711}}^1$

素因数の和:2792

約数の個数: 32

約数和(自身を含む): 42372288

約数和(自身を除く): 20874058

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 2711, 3965, 5422, 7930, 13555, 27110, 35243, 70486, 165371, 176215, 330742, 352430, 826855, 1653710, 2149823, 4299646, 10749115, 21498230]

約数ペア:

[(1, 21498230), (2, 10749115), (5, 4299646), (10, 2149823), (13, 1653710), (26, 826855), (61, 352430), (65, 330742), (122, 176215), (130, 165371), (305, 70486), (610, 35243), (793, 27110), (1586, 13555), (2711, 7930), (3965, 5422)]