20761845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6263}}^1$

素因数の和:6301

約数の個数: 32

約数和(自身を含む): 37884672

約数和(自身を除く): 17122827

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 6263, 18789, 31315, 81419, 93945, 106471, 244257, 319413, 407095, 532355, 1221285, 1384123, 1597065, 4152369, 6920615, 20761845]

約数ペア:

[(1, 20761845), (3, 6920615), (5, 4152369), (13, 1597065), (15, 1384123), (17, 1221285), (39, 532355), (51, 407095), (65, 319413), (85, 244257), (195, 106471), (221, 93945), (255, 81419), (663, 31315), (1105, 18789), (3315, 6263)]