21645936

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:431

約数の個数: 120

約数和(自身を含む): 67523456

約数和(自身を除く): 45877520

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 31, 36, 39, 48, 52, 62, 72, 78, 93, 104, 117, 124, 144, 156, 186, 208, 234, 248, 279, 312, 372, 373, 403, 468, 496, 558, 624, 744, 746, 806, 936, 1116, 1119, 1209, 1488, 1492, 1612, 1872, 2232, 2238, 2418, 2984, 3224, 3357, 3627, 4464, 4476, 4836, 4849, 5968, 6448, 6714, 7254, 8952, 9672, 9698, 11563, 13428, 14508, 14547, 17904, 19344, 19396, 23126, 26856, 29016, 29094, 34689, 38792, 43641, 46252, 53712, 58032, 58188, 69378, 77584, 87282, 92504, 104067, 116376, 138756, 150319, 174564, 185008, 208134, 232752, 277512, 300638, 349128, 416268, 450957, 555024, 601276, 698256, 832536, 901914, 1202552, 1352871, 1665072, 1803828, 2405104, 2705742, 3607656, 5411484, 7215312, 10822968, 21645936]

約数ペア:

[(1, 21645936), (2, 10822968), (3, 7215312), (4, 5411484), (6, 3607656), (8, 2705742), (9, 2405104), (12, 1803828), (13, 1665072), (16, 1352871), (18, 1202552), (24, 901914), (26, 832536), (31, 698256), (36, 601276), (39, 555024), (48, 450957), (52, 416268), (62, 349128), (72, 300638), (78, 277512), (93, 232752), (104, 208134), (117, 185008), (124, 174564), (144, 150319), (156, 138756), (186, 116376), (208, 104067), (234, 92504), (248, 87282), (279, 77584), (312, 69378), (372, 58188), (373, 58032), (403, 53712), (468, 46252), (496, 43641), (558, 38792), (624, 34689), (744, 29094), (746, 29016), (806, 26856), (936, 23126), (1116, 19396), (1119, 19344), (1209, 17904), (1488, 14547), (1492, 14508), (1612, 13428), (1872, 11563), (2232, 9698), (2238, 9672), (2418, 8952), (2984, 7254), (3224, 6714), (3357, 6448), (3627, 5968), (4464, 4849), (4476, 4836)]