221719778

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{907}}^1\times {\mathrm{919}}^1$

素因数の和:1854

約数の個数: 32

約数和(自身を含む): 400972800

約数和(自身を除く): 179253022

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 907, 919, 1814, 1838, 6349, 6433, 12698, 12866, 17233, 17461, 34466, 34922, 120631, 122227, 241262, 244454, 833533, 1667066, 5834731, 11669462, 15837127, 31674254, 110859889, 221719778]

約数ペア:

[(1, 221719778), (2, 110859889), (7, 31674254), (14, 15837127), (19, 11669462), (38, 5834731), (133, 1667066), (266, 833533), (907, 244454), (919, 241262), (1814, 122227), (1838, 120631), (6349, 34922), (6433, 34466), (12698, 17461), (12866, 17233)]