21554936

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 44469000

約数和(自身を除く): 22914064

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 107, 149, 169, 214, 298, 338, 428, 596, 676, 856, 1192, 1352, 1391, 1937, 2782, 3874, 5564, 7748, 11128, 15496, 15943, 18083, 25181, 31886, 36166, 50362, 63772, 72332, 100724, 127544, 144664, 201448, 207259, 414518, 829036, 1658072, 2694367, 5388734, 10777468, 21554936]

約数ペア:

[(1, 21554936), (2, 10777468), (4, 5388734), (8, 2694367), (13, 1658072), (26, 829036), (52, 414518), (104, 207259), (107, 201448), (149, 144664), (169, 127544), (214, 100724), (298, 72332), (338, 63772), (428, 50362), (596, 36166), (676, 31886), (856, 25181), (1192, 18083), (1352, 15943), (1391, 15496), (1937, 11128), (2782, 7748), (3874, 5564)]