21473135

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 28728000

約数和(自身を除く): 7254865

約数列:

[1, 5, 19, 37, 41, 95, 149, 185, 205, 703, 745, 779, 1517, 2831, 3515, 3895, 5513, 6109, 7585, 14155, 27565, 28823, 30545, 104747, 116071, 144115, 226033, 523735, 580355, 1130165, 4294627, 21473135]

約数ペア:

[(1, 21473135), (5, 4294627), (19, 1130165), (37, 580355), (41, 523735), (95, 226033), (149, 144115), (185, 116071), (205, 104747), (703, 30545), (745, 28823), (779, 27565), (1517, 14155), (2831, 7585), (3515, 6109), (3895, 5513)]