21030597

素因数分解:

$3^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1279}}^1$

素因数の和:1327

約数の個数: 40

約数和(自身を含む): 37171200

約数和(自身を除く): 16140603

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 81, 87, 189, 203, 261, 567, 609, 783, 1279, 1827, 2349, 3837, 5481, 8953, 11511, 16443, 26859, 34533, 37091, 80577, 103599, 111273, 241731, 259637, 333819, 725193, 778911, 1001457, 2336733, 3004371, 7010199, 21030597]

約数ペア:

[(1, 21030597), (3, 7010199), (7, 3004371), (9, 2336733), (21, 1001457), (27, 778911), (29, 725193), (63, 333819), (81, 259637), (87, 241731), (189, 111273), (203, 103599), (261, 80577), (567, 37091), (609, 34533), (783, 26859), (1279, 16443), (1827, 11511), (2349, 8953), (3837, 5481)]