20772164

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^3\times {\mathrm{151}}^1$

素因数の和:213

約数の個数: 48

約数和(自身を含む): 44432640

約数和(自身を除く): 23660476

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 151, 238, 289, 302, 476, 578, 604, 1057, 1156, 2023, 2114, 2567, 4046, 4228, 4913, 5134, 8092, 9826, 10268, 17969, 19652, 34391, 35938, 43639, 68782, 71876, 87278, 137564, 174556, 305473, 610946, 741863, 1221892, 1483726, 2967452, 5193041, 10386082, 20772164]

約数ペア:

[(1, 20772164), (2, 10386082), (4, 5193041), (7, 2967452), (14, 1483726), (17, 1221892), (28, 741863), (34, 610946), (68, 305473), (119, 174556), (151, 137564), (238, 87278), (289, 71876), (302, 68782), (476, 43639), (578, 35938), (604, 34391), (1057, 19652), (1156, 17969), (2023, 10268), (2114, 9826), (2567, 8092), (4046, 5134), (4228, 4913)]