21270650

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13723}}^1$

素因数の和:13766

約数の個数: 24

約数和(自身を含む): 40842624

約数和(自身を除く): 19571974

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 13723, 27446, 68615, 137230, 343075, 425413, 686150, 850826, 2127065, 4254130, 10635325, 21270650]

約数ペア:

[(1, 21270650), (2, 10635325), (5, 4254130), (10, 2127065), (25, 850826), (31, 686150), (50, 425413), (62, 343075), (155, 137230), (310, 68615), (775, 27446), (1550, 13723)]