21289320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4549}}^1$

素因数の和:4579

約数の個数: 96

約数和(自身を含む): 74529000

約数和(自身を除く): 53239680

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, 4549, 4680, 9098, 13647, 18196, 22745, 27294, 36392, 40941, 45490, 54588, 59137, 68235, 81882, 90980, 109176, 118274, 136470, 163764, 177411, 181960, 204705, 236548, 272940, 295685, 327528, 354822, 409410, 473096, 532233, 545880, 591370, 709644, 818820, 887055, 1064466, 1182740, 1419288, 1637640, 1774110, 2128932, 2365480, 2661165, 3548220, 4257864, 5322330, 7096440, 10644660, 21289320]

約数ペア:

[(1, 21289320), (2, 10644660), (3, 7096440), (4, 5322330), (5, 4257864), (6, 3548220), (8, 2661165), (9, 2365480), (10, 2128932), (12, 1774110), (13, 1637640), (15, 1419288), (18, 1182740), (20, 1064466), (24, 887055), (26, 818820), (30, 709644), (36, 591370), (39, 545880), (40, 532233), (45, 473096), (52, 409410), (60, 354822), (65, 327528), (72, 295685), (78, 272940), (90, 236548), (104, 204705), (117, 181960), (120, 177411), (130, 163764), (156, 136470), (180, 118274), (195, 109176), (234, 90980), (260, 81882), (312, 68235), (360, 59137), (390, 54588), (468, 45490), (520, 40941), (585, 36392), (780, 27294), (936, 22745), (1170, 18196), (1560, 13647), (2340, 9098), (4549, 4680)]