20080321911

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1\times {\mathrm{13291}}^1$

素因数の和:13696

約数の個数: 48

約数和(自身を含む): 32174615200

約数和(自身を除く): 12094293289

約数列:

[1, 3, 9, 13, 37, 39, 111, 117, 333, 349, 481, 1047, 1443, 3141, 4329, 4537, 12913, 13291, 13611, 38739, 39873, 40833, 116217, 119619, 167869, 172783, 491767, 503607, 518349, 1475301, 1510821, 1555047, 4425903, 4638559, 6392971, 13915677, 19178913, 41747031, 57536739, 60301267, 171626683, 180903801, 514880049, 542711403, 1544640147, 2231146879, 6693440637, 20080321911]

約数ペア:

[(1, 20080321911), (3, 6693440637), (9, 2231146879), (13, 1544640147), (37, 542711403), (39, 514880049), (111, 180903801), (117, 171626683), (333, 60301267), (349, 57536739), (481, 41747031), (1047, 19178913), (1443, 13915677), (3141, 6392971), (4329, 4638559), (4537, 4425903), (12913, 1555047), (13291, 1510821), (13611, 1475301), (38739, 518349), (39873, 503607), (40833, 491767), (116217, 172783), (119619, 167869)]