21217450

素因数分解:

$2^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{5813}}^1$

素因数の和:5898

約数の個数: 24

約数和(自身を含む): 40011948

約数和(自身を除く): 18794498

約数列:

[1, 2, 5, 10, 25, 50, 73, 146, 365, 730, 1825, 3650, 5813, 11626, 29065, 58130, 145325, 290650, 424349, 848698, 2121745, 4243490, 10608725, 21217450]

約数ペア:

[(1, 21217450), (2, 10608725), (5, 4243490), (10, 2121745), (25, 848698), (50, 424349), (73, 290650), (146, 145325), (365, 58130), (730, 29065), (1825, 11626), (3650, 5813)]