19591245

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 35493120

約数和(自身を除く): 15901875

約数列:

[1, 3, 5, 9, 15, 45, 47, 59, 141, 157, 177, 235, 295, 423, 471, 531, 705, 785, 885, 1413, 2115, 2355, 2655, 2773, 7065, 7379, 8319, 9263, 13865, 22137, 24957, 27789, 36895, 41595, 46315, 66411, 83367, 110685, 124785, 138945, 332055, 416835, 435361, 1306083, 2176805, 3918249, 6530415, 19591245]

約数ペア:

[(1, 19591245), (3, 6530415), (5, 3918249), (9, 2176805), (15, 1306083), (45, 435361), (47, 416835), (59, 332055), (141, 138945), (157, 124785), (177, 110685), (235, 83367), (295, 66411), (423, 46315), (471, 41595), (531, 36895), (705, 27789), (785, 24957), (885, 22137), (1413, 13865), (2115, 9263), (2355, 8319), (2655, 7379), (2773, 7065)]