21386664

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:411

約数の個数: 96

約数和(自身を含む): 63434280

約数和(自身を除く): 42047616

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 73, 78, 104, 117, 146, 156, 219, 234, 292, 312, 313, 438, 468, 584, 626, 657, 876, 936, 939, 949, 1252, 1314, 1752, 1878, 1898, 2504, 2628, 2817, 2847, 3756, 3796, 4069, 5256, 5634, 5694, 7512, 7592, 8138, 8541, 11268, 11388, 12207, 16276, 17082, 22536, 22776, 22849, 24414, 32552, 34164, 36621, 45698, 48828, 68328, 68547, 73242, 91396, 97656, 137094, 146484, 182792, 205641, 274188, 292968, 297037, 411282, 548376, 594074, 822564, 891111, 1188148, 1645128, 1782222, 2376296, 2673333, 3564444, 5346666, 7128888, 10693332, 21386664]

約数ペア:

[(1, 21386664), (2, 10693332), (3, 7128888), (4, 5346666), (6, 3564444), (8, 2673333), (9, 2376296), (12, 1782222), (13, 1645128), (18, 1188148), (24, 891111), (26, 822564), (36, 594074), (39, 548376), (52, 411282), (72, 297037), (73, 292968), (78, 274188), (104, 205641), (117, 182792), (146, 146484), (156, 137094), (219, 97656), (234, 91396), (292, 73242), (312, 68547), (313, 68328), (438, 48828), (468, 45698), (584, 36621), (626, 34164), (657, 32552), (876, 24414), (936, 22849), (939, 22776), (949, 22536), (1252, 17082), (1314, 16276), (1752, 12207), (1878, 11388), (1898, 11268), (2504, 8541), (2628, 8138), (2817, 7592), (2847, 7512), (3756, 5694), (3796, 5634), (4069, 5256)]