20909482

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:342

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 14471318

約数列:

[1, 2, 11, 22, 59, 89, 118, 178, 181, 362, 649, 979, 1298, 1958, 1991, 3982, 5251, 10502, 10679, 16109, 21358, 32218, 57761, 115522, 117469, 177199, 234938, 354398, 950431, 1900862, 10454741, 20909482]

約数ペア:

[(1, 20909482), (2, 10454741), (11, 1900862), (22, 950431), (59, 354398), (89, 234938), (118, 177199), (178, 117469), (181, 115522), (362, 57761), (649, 32218), (979, 21358), (1298, 16109), (1958, 10679), (1991, 10502), (3982, 5251)]