21000657678

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3496613}}^1$

素因数の和:3496649

約数の個数: 64

約数和(自身を含む): 56393390592

約数和(自身を除く): 35392732914

約数列:

[1, 2, 3, 6, 7, 11, 13, 14, 21, 22, 26, 33, 39, 42, 66, 77, 78, 91, 143, 154, 182, 231, 273, 286, 429, 462, 546, 858, 1001, 2002, 3003, 6006, 3496613, 6993226, 10489839, 20979678, 24476291, 38462743, 45455969, 48952582, 73428873, 76925486, 90911938, 115388229, 136367907, 146857746, 230776458, 269239201, 272735814, 318191783, 500015659, 538478402, 636383566, 807717603, 954575349, 1000031318, 1500046977, 1615435206, 1909150698, 3000093954, 3500109613, 7000219226, 10500328839, 21000657678]

約数ペア:

[(1, 21000657678), (2, 10500328839), (3, 7000219226), (6, 3500109613), (7, 3000093954), (11, 1909150698), (13, 1615435206), (14, 1500046977), (21, 1000031318), (22, 954575349), (26, 807717603), (33, 636383566), (39, 538478402), (42, 500015659), (66, 318191783), (77, 272735814), (78, 269239201), (91, 230776458), (143, 146857746), (154, 136367907), (182, 115388229), (231, 90911938), (273, 76925486), (286, 73428873), (429, 48952582), (462, 45455969), (546, 38462743), (858, 24476291), (1001, 20979678), (2002, 10489839), (3003, 6993226), (6006, 3496613)]