19915272

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{21277}}^1$

素因数の和:21302

約数の個数: 48

約数和(自身を含む): 58088940

約数和(自身を除く): 38173668

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 21277, 42554, 63831, 85108, 127662, 170216, 191493, 255324, 276601, 382986, 510648, 553202, 765972, 829803, 1106404, 1531944, 1659606, 2212808, 2489409, 3319212, 4978818, 6638424, 9957636, 19915272]

約数ペア:

[(1, 19915272), (2, 9957636), (3, 6638424), (4, 4978818), (6, 3319212), (8, 2489409), (9, 2212808), (12, 1659606), (13, 1531944), (18, 1106404), (24, 829803), (26, 765972), (36, 553202), (39, 510648), (52, 382986), (72, 276601), (78, 255324), (104, 191493), (117, 170216), (156, 127662), (234, 85108), (312, 63831), (468, 42554), (936, 21277)]