221752636

素因数分解:

$2^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{21347}}^1$

素因数の和:21418

約数の個数: 36

約数和(自身を含む): 459964008

約数和(自身を除く): 238211372

約数列:

[1, 2, 4, 7, 14, 28, 49, 53, 98, 106, 196, 212, 371, 742, 1484, 2597, 5194, 10388, 21347, 42694, 85388, 149429, 298858, 597716, 1046003, 1131391, 2092006, 2262782, 4184012, 4525564, 7919737, 15839474, 31678948, 55438159, 110876318, 221752636]

約数ペア:

[(1, 221752636), (2, 110876318), (4, 55438159), (7, 31678948), (14, 15839474), (28, 7919737), (49, 4525564), (53, 4184012), (98, 2262782), (106, 2092006), (196, 1131391), (212, 1046003), (371, 597716), (742, 298858), (1484, 149429), (2597, 85388), (5194, 42694), (10388, 21347)]