21154620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4463}}^1$

素因数の和:4554

約数の個数: 48

約数和(自身を含む): 59996160

約数和(自身を除く): 38841540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4463, 4740, 8926, 13389, 17852, 22315, 26778, 44630, 53556, 66945, 89260, 133890, 267780, 352577, 705154, 1057731, 1410308, 1762885, 2115462, 3525770, 4230924, 5288655, 7051540, 10577310, 21154620]

約数ペア:

[(1, 21154620), (2, 10577310), (3, 7051540), (4, 5288655), (5, 4230924), (6, 3525770), (10, 2115462), (12, 1762885), (15, 1410308), (20, 1057731), (30, 705154), (60, 352577), (79, 267780), (158, 133890), (237, 89260), (316, 66945), (395, 53556), (474, 44630), (790, 26778), (948, 22315), (1185, 17852), (1580, 13389), (2370, 8926), (4463, 4740)]