21013512

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1433}}^1$

素因数の和:1502

約数の個数: 64

約数和(自身を含む): 57818880

約数和(自身を除く): 36805368

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 47, 52, 78, 94, 104, 141, 156, 188, 282, 312, 376, 564, 611, 1128, 1222, 1433, 1833, 2444, 2866, 3666, 4299, 4888, 5732, 7332, 8598, 11464, 14664, 17196, 18629, 34392, 37258, 55887, 67351, 74516, 111774, 134702, 149032, 202053, 223548, 269404, 404106, 447096, 538808, 808212, 875563, 1616424, 1751126, 2626689, 3502252, 5253378, 7004504, 10506756, 21013512]

約数ペア:

[(1, 21013512), (2, 10506756), (3, 7004504), (4, 5253378), (6, 3502252), (8, 2626689), (12, 1751126), (13, 1616424), (24, 875563), (26, 808212), (39, 538808), (47, 447096), (52, 404106), (78, 269404), (94, 223548), (104, 202053), (141, 149032), (156, 134702), (188, 111774), (282, 74516), (312, 67351), (376, 55887), (564, 37258), (611, 34392), (1128, 18629), (1222, 17196), (1433, 14664), (1833, 11464), (2444, 8598), (2866, 7332), (3666, 5732), (4299, 4888)]