18851812

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 39981312

約数和(自身を除く): 21129500

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 73, 92, 146, 161, 292, 322, 401, 511, 644, 802, 1022, 1604, 1679, 2044, 2807, 3358, 5614, 6716, 9223, 11228, 11753, 18446, 23506, 29273, 36892, 47012, 58546, 64561, 117092, 129122, 204911, 258244, 409822, 673279, 819644, 1346558, 2693116, 4712953, 9425906, 18851812]

約数ペア:

[(1, 18851812), (2, 9425906), (4, 4712953), (7, 2693116), (14, 1346558), (23, 819644), (28, 673279), (46, 409822), (73, 258244), (92, 204911), (146, 129122), (161, 117092), (292, 64561), (322, 58546), (401, 47012), (511, 36892), (644, 29273), (802, 23506), (1022, 18446), (1604, 11753), (1679, 11228), (2044, 9223), (2807, 6716), (3358, 5614)]