20636538

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 27263622

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 79, 102, 158, 197, 221, 237, 394, 442, 474, 591, 663, 1027, 1182, 1326, 1343, 2054, 2561, 2686, 3081, 3349, 4029, 5122, 6162, 6698, 7683, 8058, 10047, 15366, 15563, 17459, 20094, 31126, 34918, 43537, 46689, 52377, 87074, 93378, 104754, 130611, 202319, 261222, 264571, 404638, 529142, 606957, 793713, 1213914, 1587426, 3439423, 6878846, 10318269, 20636538]

約数ペア:

[(1, 20636538), (2, 10318269), (3, 6878846), (6, 3439423), (13, 1587426), (17, 1213914), (26, 793713), (34, 606957), (39, 529142), (51, 404638), (78, 264571), (79, 261222), (102, 202319), (158, 130611), (197, 104754), (221, 93378), (237, 87074), (394, 52377), (442, 46689), (474, 43537), (591, 34918), (663, 31126), (1027, 20094), (1182, 17459), (1326, 15563), (1343, 15366), (2054, 10047), (2561, 8058), (2686, 7683), (3081, 6698), (3349, 6162), (4029, 5122)]