21848320

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1$

素因数の和:148

約数の個数: 108

約数和(自身を含む): 57229956

約数和(自身を除く): 35381636

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 101, 104, 128, 130, 160, 169, 202, 208, 256, 260, 320, 338, 404, 416, 505, 520, 640, 676, 808, 832, 845, 1010, 1040, 1280, 1313, 1352, 1616, 1664, 1690, 2020, 2080, 2626, 2704, 3232, 3328, 3380, 4040, 4160, 5252, 5408, 6464, 6565, 6760, 8080, 8320, 10504, 10816, 12928, 13130, 13520, 16160, 16640, 17069, 21008, 21632, 25856, 26260, 27040, 32320, 34138, 42016, 43264, 52520, 54080, 64640, 68276, 84032, 85345, 105040, 108160, 129280, 136552, 168064, 170690, 210080, 216320, 273104, 336128, 341380, 420160, 546208, 682760, 840320, 1092416, 1365520, 1680640, 2184832, 2731040, 4369664, 5462080, 10924160, 21848320]

約数ペア:

[(1, 21848320), (2, 10924160), (4, 5462080), (5, 4369664), (8, 2731040), (10, 2184832), (13, 1680640), (16, 1365520), (20, 1092416), (26, 840320), (32, 682760), (40, 546208), (52, 420160), (64, 341380), (65, 336128), (80, 273104), (101, 216320), (104, 210080), (128, 170690), (130, 168064), (160, 136552), (169, 129280), (202, 108160), (208, 105040), (256, 85345), (260, 84032), (320, 68276), (338, 64640), (404, 54080), (416, 52520), (505, 43264), (520, 42016), (640, 34138), (676, 32320), (808, 27040), (832, 26260), (845, 25856), (1010, 21632), (1040, 21008), (1280, 17069), (1313, 16640), (1352, 16160), (1616, 13520), (1664, 13130), (1690, 12928), (2020, 10816), (2080, 10504), (2626, 8320), (2704, 8080), (3232, 6760), (3328, 6565), (3380, 6464), (4040, 5408), (4160, 5252)]