21739284

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{307}}^1$

素因数の和:605

約数の個数: 72

約数和(自身を含む): 63231168

約数和(自身を除く): 41491884

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 281, 307, 562, 614, 843, 921, 1124, 1228, 1686, 1842, 1967, 2149, 2529, 2763, 3372, 3684, 3934, 4298, 5058, 5526, 5901, 6447, 7868, 8596, 10116, 11052, 11802, 12894, 17703, 19341, 23604, 25788, 35406, 38682, 70812, 77364, 86267, 172534, 258801, 345068, 517602, 603869, 776403, 1035204, 1207738, 1552806, 1811607, 2415476, 3105612, 3623214, 5434821, 7246428, 10869642, 21739284]

約数ペア:

[(1, 21739284), (2, 10869642), (3, 7246428), (4, 5434821), (6, 3623214), (7, 3105612), (9, 2415476), (12, 1811607), (14, 1552806), (18, 1207738), (21, 1035204), (28, 776403), (36, 603869), (42, 517602), (63, 345068), (84, 258801), (126, 172534), (252, 86267), (281, 77364), (307, 70812), (562, 38682), (614, 35406), (843, 25788), (921, 23604), (1124, 19341), (1228, 17703), (1686, 12894), (1842, 11802), (1967, 11052), (2149, 10116), (2529, 8596), (2763, 7868), (3372, 6447), (3684, 5901), (3934, 5526), (4298, 5058)]