20686982

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 34007040

約数和(自身を除く): 13320058

約数列:

[1, 2, 23, 31, 46, 62, 89, 163, 178, 326, 713, 1426, 2047, 2759, 3749, 4094, 5053, 5518, 7498, 10106, 14507, 29014, 63457, 116219, 126914, 232438, 333661, 449717, 667322, 899434, 10343491, 20686982]

約数ペア:

[(1, 20686982), (2, 10343491), (23, 899434), (31, 667322), (46, 449717), (62, 333661), (89, 232438), (163, 126914), (178, 116219), (326, 63457), (713, 29014), (1426, 14507), (2047, 10106), (2759, 7498), (3749, 5518), (4094, 5053)]