21000201252

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{690887}}^1$

素因数の和:691060

約数の個数: 48

約数和(自身を含む): 52231132800

約数和(自身を除く): 31230931548

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 149, 204, 298, 447, 596, 894, 1788, 2533, 5066, 7599, 10132, 15198, 30396, 690887, 1381774, 2072661, 2763548, 4145322, 8290644, 11745079, 23490158, 35235237, 46980316, 70470474, 102942163, 140940948, 205884326, 308826489, 411768652, 617652978, 1235305956, 1750016771, 3500033542, 5250050313, 7000067084, 10500100626, 21000201252]

約数ペア:

[(1, 21000201252), (2, 10500100626), (3, 7000067084), (4, 5250050313), (6, 3500033542), (12, 1750016771), (17, 1235305956), (34, 617652978), (51, 411768652), (68, 308826489), (102, 205884326), (149, 140940948), (204, 102942163), (298, 70470474), (447, 46980316), (596, 35235237), (894, 23490158), (1788, 11745079), (2533, 8290644), (5066, 4145322), (7599, 2763548), (10132, 2072661), (15198, 1381774), (30396, 690887)]