19752776

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2381}}^1$

素因数の和:2465

約数の個数: 32

約数和(自身を含む): 39874680

約数和(自身を除く): 20121904

約数列:

[1, 2, 4, 8, 17, 34, 61, 68, 122, 136, 244, 488, 1037, 2074, 2381, 4148, 4762, 8296, 9524, 19048, 40477, 80954, 145241, 161908, 290482, 323816, 580964, 1161928, 2469097, 4938194, 9876388, 19752776]

約数ペア:

[(1, 19752776), (2, 9876388), (4, 4938194), (8, 2469097), (17, 1161928), (34, 580964), (61, 323816), (68, 290482), (122, 161908), (136, 145241), (244, 80954), (488, 40477), (1037, 19048), (2074, 9524), (2381, 8296), (4148, 4762)]