21761365

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 29111040

約数和(自身を除く): 7349675

約数列:

[1, 5, 19, 37, 41, 95, 151, 185, 205, 703, 755, 779, 1517, 2869, 3515, 3895, 5587, 6191, 7585, 14345, 27935, 28823, 30955, 106153, 117629, 144115, 229067, 530765, 588145, 1145335, 4352273, 21761365]

約数ペア:

[(1, 21761365), (5, 4352273), (19, 1145335), (37, 588145), (41, 530765), (95, 229067), (151, 144115), (185, 117629), (205, 106153), (703, 30955), (755, 28823), (779, 27935), (1517, 14345), (2869, 7585), (3515, 6191), (3895, 5587)]