21140565

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2113}}^1$

素因数の和:2173

約数の個数: 32

約数和(自身を含む): 36529920

約数和(自身を除く): 15389355

約数列:

[1, 3, 5, 15, 23, 29, 69, 87, 115, 145, 345, 435, 667, 2001, 2113, 3335, 6339, 10005, 10565, 31695, 48599, 61277, 145797, 183831, 242995, 306385, 728985, 919155, 1409371, 4228113, 7046855, 21140565]

約数ペア:

[(1, 21140565), (3, 7046855), (5, 4228113), (15, 1409371), (23, 919155), (29, 728985), (69, 306385), (87, 242995), (115, 183831), (145, 145797), (345, 61277), (435, 48599), (667, 31695), (2001, 10565), (2113, 10005), (3335, 6339)]