21883550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:413

約数の個数: 48

約数和(自身を含む): 44340912

約数和(自身を除く): 22457362

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 131, 257, 262, 325, 514, 650, 655, 1285, 1310, 1703, 2570, 3275, 3341, 3406, 6425, 6550, 6682, 8515, 12850, 16705, 17030, 33410, 33667, 42575, 67334, 83525, 85150, 167050, 168335, 336670, 437671, 841675, 875342, 1683350, 2188355, 4376710, 10941775, 21883550]

約数ペア:

[(1, 21883550), (2, 10941775), (5, 4376710), (10, 2188355), (13, 1683350), (25, 875342), (26, 841675), (50, 437671), (65, 336670), (130, 168335), (131, 167050), (257, 85150), (262, 83525), (325, 67334), (514, 42575), (650, 33667), (655, 33410), (1285, 17030), (1310, 16705), (1703, 12850), (2570, 8515), (3275, 6682), (3341, 6550), (3406, 6425)]