21301920

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{4931}}^1$

素因数の和:4955

約数の個数: 96

約数和(自身を含む): 74571840

約数和(自身を除く): 53269920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 4931, 9862, 14793, 19724, 24655, 29586, 39448, 44379, 49310, 59172, 73965, 78896, 88758, 98620, 118344, 133137, 147930, 157792, 177516, 197240, 221895, 236688, 266274, 295860, 355032, 394480, 443790, 473376, 532548, 591720, 665685, 710064, 788960, 887580, 1065096, 1183440, 1331370, 1420128, 1775160, 2130192, 2366880, 2662740, 3550320, 4260384, 5325480, 7100640, 10650960, 21301920]

約数ペア:

[(1, 21301920), (2, 10650960), (3, 7100640), (4, 5325480), (5, 4260384), (6, 3550320), (8, 2662740), (9, 2366880), (10, 2130192), (12, 1775160), (15, 1420128), (16, 1331370), (18, 1183440), (20, 1065096), (24, 887580), (27, 788960), (30, 710064), (32, 665685), (36, 591720), (40, 532548), (45, 473376), (48, 443790), (54, 394480), (60, 355032), (72, 295860), (80, 266274), (90, 236688), (96, 221895), (108, 197240), (120, 177516), (135, 157792), (144, 147930), (160, 133137), (180, 118344), (216, 98620), (240, 88758), (270, 78896), (288, 73965), (360, 59172), (432, 49310), (480, 44379), (540, 39448), (720, 29586), (864, 24655), (1080, 19724), (1440, 14793), (2160, 9862), (4320, 4931)]