21216816

素因数分解:

$2^4\times 3^6\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:150

約数の個数: 140

約数和(自身を含む): 65868552

約数和(自身を除く): 44651736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 34, 36, 48, 51, 54, 68, 72, 81, 102, 107, 108, 136, 144, 153, 162, 204, 214, 216, 243, 272, 306, 321, 324, 408, 428, 432, 459, 486, 612, 642, 648, 729, 816, 856, 918, 963, 972, 1224, 1284, 1296, 1377, 1458, 1712, 1819, 1836, 1926, 1944, 2448, 2568, 2754, 2889, 2916, 3638, 3672, 3852, 3888, 4131, 5136, 5457, 5508, 5778, 5832, 7276, 7344, 7704, 8262, 8667, 10914, 11016, 11556, 11664, 12393, 14552, 15408, 16371, 16524, 17334, 21828, 22032, 23112, 24786, 26001, 29104, 32742, 33048, 34668, 43656, 46224, 49113, 49572, 52002, 65484, 66096, 69336, 78003, 87312, 98226, 99144, 104004, 130968, 138672, 147339, 156006, 196452, 198288, 208008, 261936, 294678, 312012, 392904, 416016, 442017, 589356, 624024, 785808, 884034, 1178712, 1248048, 1326051, 1768068, 2357424, 2652102, 3536136, 5304204, 7072272, 10608408, 21216816]

約数ペア:

[(1, 21216816), (2, 10608408), (3, 7072272), (4, 5304204), (6, 3536136), (8, 2652102), (9, 2357424), (12, 1768068), (16, 1326051), (17, 1248048), (18, 1178712), (24, 884034), (27, 785808), (34, 624024), (36, 589356), (48, 442017), (51, 416016), (54, 392904), (68, 312012), (72, 294678), (81, 261936), (102, 208008), (107, 198288), (108, 196452), (136, 156006), (144, 147339), (153, 138672), (162, 130968), (204, 104004), (214, 99144), (216, 98226), (243, 87312), (272, 78003), (306, 69336), (321, 66096), (324, 65484), (408, 52002), (428, 49572), (432, 49113), (459, 46224), (486, 43656), (612, 34668), (642, 33048), (648, 32742), (729, 29104), (816, 26001), (856, 24786), (918, 23112), (963, 22032), (972, 21828), (1224, 17334), (1284, 16524), (1296, 16371), (1377, 15408), (1458, 14552), (1712, 12393), (1819, 11664), (1836, 11556), (1926, 11016), (1944, 10914), (2448, 8667), (2568, 8262), (2754, 7704), (2889, 7344), (2916, 7276), (3638, 5832), (3672, 5778), (3852, 5508), (3888, 5457), (4131, 5136)]