21485880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4591}}^1$

素因数の和:4621

約数の個数: 96

約数和(自身を含む): 75216960

約数和(自身を除く): 53731080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4591, 4680, 9182, 13773, 18364, 22955, 27546, 36728, 41319, 45910, 55092, 59683, 68865, 82638, 91820, 110184, 119366, 137730, 165276, 179049, 183640, 206595, 238732, 275460, 298415, 330552, 358098, 413190, 477464, 537147, 550920, 596830, 716196, 826380, 895245, 1074294, 1193660, 1432392, 1652760, 1790490, 2148588, 2387320, 2685735, 3580980, 4297176, 5371470, 7161960, 10742940, 21485880]

約数ペア:

[(1, 21485880), (2, 10742940), (3, 7161960), (4, 5371470), (5, 4297176), (6, 3580980), (8, 2685735), (9, 2387320), (10, 2148588), (12, 1790490), (13, 1652760), (15, 1432392), (18, 1193660), (20, 1074294), (24, 895245), (26, 826380), (30, 716196), (36, 596830), (39, 550920), (40, 537147), (45, 477464), (52, 413190), (60, 358098), (65, 330552), (72, 298415), (78, 275460), (90, 238732), (104, 206595), (117, 183640), (120, 179049), (130, 165276), (156, 137730), (180, 119366), (195, 110184), (234, 91820), (260, 82638), (312, 68865), (360, 59683), (390, 55092), (468, 45910), (520, 41319), (585, 36728), (780, 27546), (936, 22955), (1170, 18364), (1560, 13773), (2340, 9182), (4591, 4680)]