21186720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14713}}^1$

素因数の和:14734

約数の個数: 72

約数和(自身を含む): 72304596

約数和(自身を除く): 51117876

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, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14713, 29426, 44139, 58852, 73565, 88278, 117704, 132417, 147130, 176556, 220695, 235408, 264834, 294260, 353112, 441390, 470816, 529668, 588520, 662085, 706224, 882780, 1059336, 1177040, 1324170, 1412448, 1765560, 2118672, 2354080, 2648340, 3531120, 4237344, 5296680, 7062240, 10593360, 21186720]

約数ペア:

[(1, 21186720), (2, 10593360), (3, 7062240), (4, 5296680), (5, 4237344), (6, 3531120), (8, 2648340), (9, 2354080), (10, 2118672), (12, 1765560), (15, 1412448), (16, 1324170), (18, 1177040), (20, 1059336), (24, 882780), (30, 706224), (32, 662085), (36, 588520), (40, 529668), (45, 470816), (48, 441390), (60, 353112), (72, 294260), (80, 264834), (90, 235408), (96, 220695), (120, 176556), (144, 147130), (160, 132417), (180, 117704), (240, 88278), (288, 73565), (360, 58852), (480, 44139), (720, 29426), (1440, 14713)]