21398200

素因数分解:

$2^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1103}}^1$

素因数の和:1216

約数の個数: 48

約数和(自身を含む): 50309280

約数和(自身を除く): 28911080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 194, 200, 388, 485, 776, 970, 1103, 1940, 2206, 2425, 3880, 4412, 4850, 5515, 8824, 9700, 11030, 19400, 22060, 27575, 44120, 55150, 106991, 110300, 213982, 220600, 427964, 534955, 855928, 1069910, 2139820, 2674775, 4279640, 5349550, 10699100, 21398200]

約数ペア:

[(1, 21398200), (2, 10699100), (4, 5349550), (5, 4279640), (8, 2674775), (10, 2139820), (20, 1069910), (25, 855928), (40, 534955), (50, 427964), (97, 220600), (100, 213982), (194, 110300), (200, 106991), (388, 55150), (485, 44120), (776, 27575), (970, 22060), (1103, 19400), (1940, 11030), (2206, 9700), (2425, 8824), (3880, 5515), (4412, 4850)]