249707913

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{2281}}^1$

素因数の和:2705

約数の個数: 32

約数和(自身を含む): 410979072

約数和(自身を除く): 161271159

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 401, 1203, 2281, 2807, 5213, 6843, 8421, 15639, 15967, 29653, 36491, 47901, 88959, 109473, 207571, 622713, 914681, 2744043, 6402767, 11890853, 19208301, 35672559, 83235971, 249707913]

約数ペア:

[(1, 249707913), (3, 83235971), (7, 35672559), (13, 19208301), (21, 11890853), (39, 6402767), (91, 2744043), (273, 914681), (401, 622713), (1203, 207571), (2281, 109473), (2807, 88959), (5213, 47901), (6843, 36491), (8421, 29653), (15639, 15967)]