19757128

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2741}}^1$

素因数の和:2817

約数の個数: 32

約数和(自身を含む): 39978360

約数和(自身を除く): 20221232

約数列:

[1, 2, 4, 8, 17, 34, 53, 68, 106, 136, 212, 424, 901, 1802, 2741, 3604, 5482, 7208, 10964, 21928, 46597, 93194, 145273, 186388, 290546, 372776, 581092, 1162184, 2469641, 4939282, 9878564, 19757128]

約数ペア:

[(1, 19757128), (2, 9878564), (4, 4939282), (8, 2469641), (17, 1162184), (34, 581092), (53, 372776), (68, 290546), (106, 186388), (136, 145273), (212, 93194), (424, 46597), (901, 21928), (1802, 10964), (2741, 7208), (3604, 5482)]