17991028

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 36235584

約数和(自身を除く): 18244556

約数列:

[1, 2, 4, 11, 22, 37, 43, 44, 74, 86, 148, 172, 257, 407, 473, 514, 814, 946, 1028, 1591, 1628, 1892, 2827, 3182, 5654, 6364, 9509, 11051, 11308, 17501, 19018, 22102, 35002, 38036, 44204, 70004, 104599, 121561, 209198, 243122, 408887, 418396, 486244, 817774, 1635548, 4497757, 8995514, 17991028]

約数ペア:

[(1, 17991028), (2, 8995514), (4, 4497757), (11, 1635548), (22, 817774), (37, 486244), (43, 418396), (44, 408887), (74, 243122), (86, 209198), (148, 121561), (172, 104599), (257, 70004), (407, 44204), (473, 38036), (514, 35002), (814, 22102), (946, 19018), (1028, 17501), (1591, 11308), (1628, 11051), (1892, 9509), (2827, 6364), (3182, 5654)]