19397925

素因数分解:

$3^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{1181}}^1$

素因数の和:1270

約数の個数: 36

約数和(自身を含む): 35249604

約数和(自身を除く): 15851679

約数列:

[1, 3, 5, 9, 15, 25, 45, 73, 75, 219, 225, 365, 657, 1095, 1181, 1825, 3285, 3543, 5475, 5905, 10629, 16425, 17715, 29525, 53145, 86213, 88575, 258639, 265725, 431065, 775917, 1293195, 2155325, 3879585, 6465975, 19397925]

約数ペア:

[(1, 19397925), (3, 6465975), (5, 3879585), (9, 2155325), (15, 1293195), (25, 775917), (45, 431065), (73, 265725), (75, 258639), (219, 88575), (225, 86213), (365, 53145), (657, 29525), (1095, 17715), (1181, 16425), (1825, 10629), (3285, 5905), (3543, 5475)]