213980228

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:433

約数の個数: 96

約数和(自身を含む): 490119168

約数和(自身を除く): 276138940

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 73, 77, 124, 146, 154, 217, 292, 307, 308, 341, 434, 511, 614, 682, 803, 868, 1022, 1228, 1364, 1606, 2044, 2149, 2263, 2387, 3212, 3377, 4298, 4526, 4774, 5621, 6754, 8596, 9052, 9517, 9548, 11242, 13508, 15841, 19034, 22411, 22484, 23639, 24893, 31682, 38068, 44822, 47278, 49786, 63364, 66619, 89644, 94556, 99572, 104687, 133238, 156877, 174251, 209374, 246521, 266476, 313754, 348502, 418748, 493042, 627508, 694741, 697004, 732809, 986084, 1389482, 1465618, 1725647, 2778964, 2931236, 3451294, 4863187, 6902588, 7642151, 9726374, 15284302, 19452748, 30568604, 53495057, 106990114, 213980228]

約数ペア:

[(1, 213980228), (2, 106990114), (4, 53495057), (7, 30568604), (11, 19452748), (14, 15284302), (22, 9726374), (28, 7642151), (31, 6902588), (44, 4863187), (62, 3451294), (73, 2931236), (77, 2778964), (124, 1725647), (146, 1465618), (154, 1389482), (217, 986084), (292, 732809), (307, 697004), (308, 694741), (341, 627508), (434, 493042), (511, 418748), (614, 348502), (682, 313754), (803, 266476), (868, 246521), (1022, 209374), (1228, 174251), (1364, 156877), (1606, 133238), (2044, 104687), (2149, 99572), (2263, 94556), (2387, 89644), (3212, 66619), (3377, 63364), (4298, 49786), (4526, 47278), (4774, 44822), (5621, 38068), (6754, 31682), (8596, 24893), (9052, 23639), (9517, 22484), (9548, 22411), (11242, 19034), (13508, 15841)]