21189718384

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1483043}}^1$

素因数の和:1483117

約数の個数: 40

約数和(自身を含む): 44135389440

約数和(自身を除く): 22945671056

約数列:

[1, 2, 4, 8, 16, 19, 38, 47, 76, 94, 152, 188, 304, 376, 752, 893, 1786, 3572, 7144, 14288, 1483043, 2966086, 5932172, 11864344, 23728688, 28177817, 56355634, 69703021, 112711268, 139406042, 225422536, 278812084, 450845072, 557624168, 1115248336, 1324357399, 2648714798, 5297429596, 10594859192, 21189718384]

約数ペア:

[(1, 21189718384), (2, 10594859192), (4, 5297429596), (8, 2648714798), (16, 1324357399), (19, 1115248336), (38, 557624168), (47, 450845072), (76, 278812084), (94, 225422536), (152, 139406042), (188, 112711268), (304, 69703021), (376, 56355634), (752, 28177817), (893, 23728688), (1786, 11864344), (3572, 5932172), (7144, 2966086), (14288, 1483043)]