221569161904

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{1987}}^1\times {\mathrm{409961}}^1$

素因数の和:411973

約数の個数: 40

約数和(自身を含む): 454772486448

約数和(自身を除く): 233203324544

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 1987, 3974, 7948, 15896, 31792, 33779, 67558, 135116, 270232, 409961, 540464, 819922, 1639844, 3279688, 6559376, 6969337, 13938674, 27877348, 55754696, 111509392, 814592507, 1629185014, 3258370028, 6516740056, 13033480112, 13848072619, 27696145238, 55392290476, 110784580952, 221569161904]

約数ペア:

[(1, 221569161904), (2, 110784580952), (4, 55392290476), (8, 27696145238), (16, 13848072619), (17, 13033480112), (34, 6516740056), (68, 3258370028), (136, 1629185014), (272, 814592507), (1987, 111509392), (3974, 55754696), (7948, 27877348), (15896, 13938674), (31792, 6969337), (33779, 6559376), (67558, 3279688), (135116, 1639844), (270232, 819922), (409961, 540464)]