28640661

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{359}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 45619200

約数和(自身を除く): 16978539

約数列:

[1, 3, 7, 21, 29, 87, 131, 203, 359, 393, 609, 917, 1077, 2513, 2751, 3799, 7539, 10411, 11397, 26593, 31233, 47029, 72877, 79779, 141087, 218631, 329203, 987609, 1363841, 4091523, 9546887, 28640661]

約数ペア:

[(1, 28640661), (3, 9546887), (7, 4091523), (21, 1363841), (29, 987609), (87, 329203), (131, 218631), (203, 141087), (359, 79779), (393, 72877), (609, 47029), (917, 31233), (1077, 26593), (2513, 11397), (2751, 10411), (3799, 7539)]