28181426

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 53722944

約数和(自身を除く): 25541518

約数列:

[1, 2, 7, 13, 14, 26, 43, 86, 91, 169, 182, 277, 301, 338, 554, 559, 602, 1118, 1183, 1939, 2366, 3601, 3878, 3913, 7202, 7267, 7826, 11911, 14534, 23822, 25207, 46813, 50414, 50869, 83377, 93626, 101738, 154843, 166754, 309686, 327691, 655382, 1083901, 2012959, 2167802, 4025918, 14090713, 28181426]

約数ペア:

[(1, 28181426), (2, 14090713), (7, 4025918), (13, 2167802), (14, 2012959), (26, 1083901), (43, 655382), (86, 327691), (91, 309686), (169, 166754), (182, 154843), (277, 101738), (301, 93626), (338, 83377), (554, 50869), (559, 50414), (602, 46813), (1118, 25207), (1183, 23822), (1939, 14534), (2366, 11911), (3601, 7826), (3878, 7267), (3913, 7202)]