221296995

素因数分解:

$3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:421

約数の個数: 64

約数和(自身を含む): 405440640

約数和(自身を除く): 184143645

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 135, 157, 159, 197, 265, 471, 477, 591, 785, 795, 985, 1413, 1431, 1773, 2355, 2385, 2955, 4239, 5319, 7065, 7155, 8321, 8865, 10441, 21195, 24963, 26595, 30929, 31323, 41605, 52205, 74889, 92787, 93969, 124815, 154645, 156615, 224667, 278361, 281907, 374445, 463935, 469845, 835083, 1123335, 1391805, 1409535, 1639237, 4175415, 4917711, 8196185, 14753133, 24588555, 44259399, 73765665, 221296995]

約数ペア:

[(1, 221296995), (3, 73765665), (5, 44259399), (9, 24588555), (15, 14753133), (27, 8196185), (45, 4917711), (53, 4175415), (135, 1639237), (157, 1409535), (159, 1391805), (197, 1123335), (265, 835083), (471, 469845), (477, 463935), (591, 374445), (785, 281907), (795, 278361), (985, 224667), (1413, 156615), (1431, 154645), (1773, 124815), (2355, 93969), (2385, 92787), (2955, 74889), (4239, 52205), (5319, 41605), (7065, 31323), (7155, 30929), (8321, 26595), (8865, 24963), (10441, 21195)]