12691245

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{557}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 24427008

約数和(自身を除く): 11735763

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 49, 93, 105, 147, 155, 217, 245, 465, 557, 651, 735, 1085, 1519, 1671, 2785, 3255, 3899, 4557, 7595, 8355, 11697, 17267, 19495, 22785, 27293, 51801, 58485, 81879, 86335, 120869, 136465, 259005, 362607, 409395, 604345, 846083, 1813035, 2538249, 4230415, 12691245]

約数ペア:

[(1, 12691245), (3, 4230415), (5, 2538249), (7, 1813035), (15, 846083), (21, 604345), (31, 409395), (35, 362607), (49, 259005), (93, 136465), (105, 120869), (147, 86335), (155, 81879), (217, 58485), (245, 51801), (465, 27293), (557, 22785), (651, 19495), (735, 17267), (1085, 11697), (1519, 8355), (1671, 7595), (2785, 4557), (3255, 3899)]