21495816

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{8069}}^1$

素因数の和:8118

約数の個数: 48

約数和(自身を含む): 59798700

約数和(自身を除く): 38302884

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 888, 1332, 2664, 8069, 16138, 24207, 32276, 48414, 64552, 72621, 96828, 145242, 193656, 290484, 298553, 580968, 597106, 895659, 1194212, 1791318, 2388424, 2686977, 3582636, 5373954, 7165272, 10747908, 21495816]

約数ペア:

[(1, 21495816), (2, 10747908), (3, 7165272), (4, 5373954), (6, 3582636), (8, 2686977), (9, 2388424), (12, 1791318), (18, 1194212), (24, 895659), (36, 597106), (37, 580968), (72, 298553), (74, 290484), (111, 193656), (148, 145242), (222, 96828), (296, 72621), (333, 64552), (444, 48414), (666, 32276), (888, 24207), (1332, 16138), (2664, 8069)]