21758264

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2549}}^1$

素因数の和:2663

約数の個数: 32

約数和(自身を含む): 44982000

約数和(自身を除く): 23223736

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 194, 388, 776, 1067, 2134, 2549, 4268, 5098, 8536, 10196, 20392, 28039, 56078, 112156, 224312, 247253, 494506, 989012, 1978024, 2719783, 5439566, 10879132, 21758264]

約数ペア:

[(1, 21758264), (2, 10879132), (4, 5439566), (8, 2719783), (11, 1978024), (22, 989012), (44, 494506), (88, 247253), (97, 224312), (194, 112156), (388, 56078), (776, 28039), (1067, 20392), (2134, 10196), (2549, 8536), (4268, 5098)]