21392784

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1117}}^1$

素因数の和:1157

約数の個数: 120

約数和(自身を含む): 72088640

約数和(自身を除く): 50695856

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 28, 36, 38, 42, 48, 56, 57, 63, 72, 76, 84, 112, 114, 126, 133, 144, 152, 168, 171, 228, 252, 266, 304, 336, 342, 399, 456, 504, 532, 684, 798, 912, 1008, 1064, 1117, 1197, 1368, 1596, 2128, 2234, 2394, 2736, 3192, 3351, 4468, 4788, 6384, 6702, 7819, 8936, 9576, 10053, 13404, 15638, 17872, 19152, 20106, 21223, 23457, 26808, 31276, 40212, 42446, 46914, 53616, 62552, 63669, 70371, 80424, 84892, 93828, 125104, 127338, 140742, 148561, 160848, 169784, 187656, 191007, 254676, 281484, 297122, 339568, 375312, 382014, 445683, 509352, 562968, 594244, 764028, 891366, 1018704, 1125936, 1188488, 1337049, 1528056, 1782732, 2376976, 2674098, 3056112, 3565464, 5348196, 7130928, 10696392, 21392784]

約数ペア:

[(1, 21392784), (2, 10696392), (3, 7130928), (4, 5348196), (6, 3565464), (7, 3056112), (8, 2674098), (9, 2376976), (12, 1782732), (14, 1528056), (16, 1337049), (18, 1188488), (19, 1125936), (21, 1018704), (24, 891366), (28, 764028), (36, 594244), (38, 562968), (42, 509352), (48, 445683), (56, 382014), (57, 375312), (63, 339568), (72, 297122), (76, 281484), (84, 254676), (112, 191007), (114, 187656), (126, 169784), (133, 160848), (144, 148561), (152, 140742), (168, 127338), (171, 125104), (228, 93828), (252, 84892), (266, 80424), (304, 70371), (336, 63669), (342, 62552), (399, 53616), (456, 46914), (504, 42446), (532, 40212), (684, 31276), (798, 26808), (912, 23457), (1008, 21223), (1064, 20106), (1117, 19152), (1197, 17872), (1368, 15638), (1596, 13404), (2128, 10053), (2234, 9576), (2394, 8936), (2736, 7819), (3192, 6702), (3351, 6384), (4468, 4788)]