21185950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{769}}^1$

素因数の和:829

約数の個数: 48

約数和(自身を含む): 42966000

約数和(自身を除く): 21780050

約数列:

[1, 2, 5, 10, 19, 25, 29, 38, 50, 58, 95, 145, 190, 290, 475, 551, 725, 769, 950, 1102, 1450, 1538, 2755, 3845, 5510, 7690, 13775, 14611, 19225, 22301, 27550, 29222, 38450, 44602, 73055, 111505, 146110, 223010, 365275, 423719, 557525, 730550, 847438, 1115050, 2118595, 4237190, 10592975, 21185950]

約数ペア:

[(1, 21185950), (2, 10592975), (5, 4237190), (10, 2118595), (19, 1115050), (25, 847438), (29, 730550), (38, 557525), (50, 423719), (58, 365275), (95, 223010), (145, 146110), (190, 111505), (290, 73055), (475, 44602), (551, 38450), (725, 29222), (769, 27550), (950, 22301), (1102, 19225), (1450, 14611), (1538, 13775), (2755, 7690), (3845, 5510)]