20937345

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:302

約数の個数: 64

約数和(自身を含む): 40449024

約数和(自身を除く): 19511679

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 43, 55, 65, 129, 143, 165, 195, 215, 227, 429, 473, 559, 645, 681, 715, 1135, 1419, 1677, 2145, 2365, 2497, 2795, 2951, 3405, 6149, 7095, 7491, 8385, 8853, 9761, 12485, 14755, 18447, 29283, 30745, 32461, 37455, 44265, 48805, 92235, 97383, 107371, 126893, 146415, 162305, 322113, 380679, 486915, 536855, 634465, 1395823, 1610565, 1903395, 4187469, 6979115, 20937345]

約数ペア:

[(1, 20937345), (3, 6979115), (5, 4187469), (11, 1903395), (13, 1610565), (15, 1395823), (33, 634465), (39, 536855), (43, 486915), (55, 380679), (65, 322113), (129, 162305), (143, 146415), (165, 126893), (195, 107371), (215, 97383), (227, 92235), (429, 48805), (473, 44265), (559, 37455), (645, 32461), (681, 30745), (715, 29283), (1135, 18447), (1419, 14755), (1677, 12485), (2145, 9761), (2365, 8853), (2497, 8385), (2795, 7491), (2951, 7095), (3405, 6149)]