21222720

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{7369}}^1$

素因数の和:7392

約数の個数: 84

約数和(自身を含む): 73007220

約数和(自身を除く): 51784500

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 7369, 14738, 22107, 29476, 36845, 44214, 58952, 66321, 73690, 88428, 110535, 117904, 132642, 147380, 176856, 221070, 235808, 265284, 294760, 331605, 353712, 442140, 471616, 530568, 589520, 663210, 707424, 884280, 1061136, 1179040, 1326420, 1414848, 1768560, 2122272, 2358080, 2652840, 3537120, 4244544, 5305680, 7074240, 10611360, 21222720]

約数ペア:

[(1, 21222720), (2, 10611360), (3, 7074240), (4, 5305680), (5, 4244544), (6, 3537120), (8, 2652840), (9, 2358080), (10, 2122272), (12, 1768560), (15, 1414848), (16, 1326420), (18, 1179040), (20, 1061136), (24, 884280), (30, 707424), (32, 663210), (36, 589520), (40, 530568), (45, 471616), (48, 442140), (60, 353712), (64, 331605), (72, 294760), (80, 265284), (90, 235808), (96, 221070), (120, 176856), (144, 147380), (160, 132642), (180, 117904), (192, 110535), (240, 88428), (288, 73690), (320, 66321), (360, 58952), (480, 44214), (576, 36845), (720, 29476), (960, 22107), (1440, 14738), (2880, 7369)]