221465783

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{461}}^1$

素因数の和:863

約数の個数: 32

約数和(自身を含む): 293787648

約数和(自身を除く): 72321865

約数列:

[1, 7, 11, 17, 77, 119, 187, 367, 461, 1309, 2569, 3227, 4037, 5071, 6239, 7837, 28259, 35497, 43673, 54859, 68629, 86207, 169187, 480403, 603449, 1184309, 1861057, 2876179, 13027399, 20133253, 31637969, 221465783]

約数ペア:

[(1, 221465783), (7, 31637969), (11, 20133253), (17, 13027399), (77, 2876179), (119, 1861057), (187, 1184309), (367, 603449), (461, 480403), (1309, 169187), (2569, 86207), (3227, 68629), (4037, 54859), (5071, 43673), (6239, 35497), (7837, 28259)]