19793775

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^2\times {\mathrm{157}}^1$

素因数の和:252

約数の個数: 36

約数和(自身を含む): 33757016

約数和(自身を除く): 13963241

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 157, 205, 471, 615, 785, 1025, 1681, 2355, 3075, 3925, 5043, 6437, 8405, 11775, 19311, 25215, 32185, 42025, 96555, 126075, 160925, 263917, 482775, 791751, 1319585, 3958755, 6597925, 19793775]

約数ペア:

[(1, 19793775), (3, 6597925), (5, 3958755), (15, 1319585), (25, 791751), (41, 482775), (75, 263917), (123, 160925), (157, 126075), (205, 96555), (471, 42025), (615, 32185), (785, 25215), (1025, 19311), (1681, 11775), (2355, 8405), (3075, 6437), (3925, 5043)]