21914280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:320

約数の個数: 128

約数和(自身を含む): 74131200

約数和(自身を除く): 52216920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 103, 108, 120, 135, 180, 197, 206, 216, 270, 309, 360, 394, 412, 515, 540, 591, 618, 788, 824, 927, 985, 1030, 1080, 1182, 1236, 1545, 1576, 1773, 1854, 1970, 2060, 2364, 2472, 2781, 2955, 3090, 3546, 3708, 3940, 4120, 4635, 4728, 5319, 5562, 5910, 6180, 7092, 7416, 7880, 8865, 9270, 10638, 11124, 11820, 12360, 13905, 14184, 17730, 18540, 20291, 21276, 22248, 23640, 26595, 27810, 35460, 37080, 40582, 42552, 53190, 55620, 60873, 70920, 81164, 101455, 106380, 111240, 121746, 162328, 182619, 202910, 212760, 243492, 304365, 365238, 405820, 486984, 547857, 608730, 730476, 811640, 913095, 1095714, 1217460, 1460952, 1826190, 2191428, 2434920, 2739285, 3652380, 4382856, 5478570, 7304760, 10957140, 21914280]

約数ペア:

[(1, 21914280), (2, 10957140), (3, 7304760), (4, 5478570), (5, 4382856), (6, 3652380), (8, 2739285), (9, 2434920), (10, 2191428), (12, 1826190), (15, 1460952), (18, 1217460), (20, 1095714), (24, 913095), (27, 811640), (30, 730476), (36, 608730), (40, 547857), (45, 486984), (54, 405820), (60, 365238), (72, 304365), (90, 243492), (103, 212760), (108, 202910), (120, 182619), (135, 162328), (180, 121746), (197, 111240), (206, 106380), (216, 101455), (270, 81164), (309, 70920), (360, 60873), (394, 55620), (412, 53190), (515, 42552), (540, 40582), (591, 37080), (618, 35460), (788, 27810), (824, 26595), (927, 23640), (985, 22248), (1030, 21276), (1080, 20291), (1182, 18540), (1236, 17730), (1545, 14184), (1576, 13905), (1773, 12360), (1854, 11820), (1970, 11124), (2060, 10638), (2364, 9270), (2472, 8865), (2781, 7880), (2955, 7416), (3090, 7092), (3546, 6180), (3708, 5910), (3940, 5562), (4120, 5319), (4635, 4728)]