21047520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3373}}^1$

素因数の和:3404

約数の個数: 96

約数和(自身を含む): 71420832

約数和(自身を除く): 50373312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 312, 390, 416, 480, 520, 624, 780, 1040, 1248, 1560, 2080, 3120, 3373, 6240, 6746, 10119, 13492, 16865, 20238, 26984, 33730, 40476, 43849, 50595, 53968, 67460, 80952, 87698, 101190, 107936, 131547, 134920, 161904, 175396, 202380, 219245, 263094, 269840, 323808, 350792, 404760, 438490, 526188, 539680, 657735, 701584, 809520, 876980, 1052376, 1315470, 1403168, 1619040, 1753960, 2104752, 2630940, 3507920, 4209504, 5261880, 7015840, 10523760, 21047520]

約数ペア:

[(1, 21047520), (2, 10523760), (3, 7015840), (4, 5261880), (5, 4209504), (6, 3507920), (8, 2630940), (10, 2104752), (12, 1753960), (13, 1619040), (15, 1403168), (16, 1315470), (20, 1052376), (24, 876980), (26, 809520), (30, 701584), (32, 657735), (39, 539680), (40, 526188), (48, 438490), (52, 404760), (60, 350792), (65, 323808), (78, 269840), (80, 263094), (96, 219245), (104, 202380), (120, 175396), (130, 161904), (156, 134920), (160, 131547), (195, 107936), (208, 101190), (240, 87698), (260, 80952), (312, 67460), (390, 53968), (416, 50595), (480, 43849), (520, 40476), (624, 33730), (780, 26984), (1040, 20238), (1248, 16865), (1560, 13492), (2080, 10119), (3120, 6746), (3373, 6240)]