21696776

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{983}}^1$

素因数の和:1109

約数の個数: 32

約数和(自身を含む): 42508800

約数和(自身を除く): 20812024

約数列:

[1, 2, 4, 8, 31, 62, 89, 124, 178, 248, 356, 712, 983, 1966, 2759, 3932, 5518, 7864, 11036, 22072, 30473, 60946, 87487, 121892, 174974, 243784, 349948, 699896, 2712097, 5424194, 10848388, 21696776]

約数ペア:

[(1, 21696776), (2, 10848388), (4, 5424194), (8, 2712097), (31, 699896), (62, 349948), (89, 243784), (124, 174974), (178, 121892), (248, 87487), (356, 60946), (712, 30473), (983, 22072), (1966, 11036), (2759, 7864), (3932, 5518)]