19763248

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{643}}^1$

素因数の和:781

約数の個数: 40

約数和(自身を含む): 40966128

約数和(自身を除く): 21202880

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 113, 136, 226, 272, 452, 643, 904, 1286, 1808, 1921, 2572, 3842, 5144, 7684, 10288, 10931, 15368, 21862, 30736, 43724, 72659, 87448, 145318, 174896, 290636, 581272, 1162544, 1235203, 2470406, 4940812, 9881624, 19763248]

約数ペア:

[(1, 19763248), (2, 9881624), (4, 4940812), (8, 2470406), (16, 1235203), (17, 1162544), (34, 581272), (68, 290636), (113, 174896), (136, 145318), (226, 87448), (272, 72659), (452, 43724), (643, 30736), (904, 21862), (1286, 15368), (1808, 10931), (1921, 10288), (2572, 7684), (3842, 5144)]