21247512

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 64350720

約数和(自身を除く): 43103208

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 33, 39, 41, 44, 52, 66, 78, 82, 88, 104, 123, 132, 143, 151, 156, 164, 246, 264, 286, 302, 312, 328, 429, 451, 453, 492, 533, 572, 604, 858, 902, 906, 984, 1066, 1144, 1208, 1353, 1599, 1661, 1716, 1804, 1812, 1963, 2132, 2706, 3198, 3322, 3432, 3608, 3624, 3926, 4264, 4983, 5412, 5863, 5889, 6191, 6396, 6644, 7852, 9966, 10824, 11726, 11778, 12382, 12792, 13288, 15704, 17589, 18573, 19932, 21593, 23452, 23556, 24764, 35178, 37146, 39864, 43186, 46904, 47112, 49528, 64779, 68101, 70356, 74292, 80483, 86372, 129558, 136202, 140712, 148584, 160966, 172744, 204303, 241449, 259116, 272404, 321932, 408606, 482898, 518232, 544808, 643864, 817212, 885313, 965796, 1634424, 1770626, 1931592, 2655939, 3541252, 5311878, 7082504, 10623756, 21247512]

約数ペア:

[(1, 21247512), (2, 10623756), (3, 7082504), (4, 5311878), (6, 3541252), (8, 2655939), (11, 1931592), (12, 1770626), (13, 1634424), (22, 965796), (24, 885313), (26, 817212), (33, 643864), (39, 544808), (41, 518232), (44, 482898), (52, 408606), (66, 321932), (78, 272404), (82, 259116), (88, 241449), (104, 204303), (123, 172744), (132, 160966), (143, 148584), (151, 140712), (156, 136202), (164, 129558), (246, 86372), (264, 80483), (286, 74292), (302, 70356), (312, 68101), (328, 64779), (429, 49528), (451, 47112), (453, 46904), (492, 43186), (533, 39864), (572, 37146), (604, 35178), (858, 24764), (902, 23556), (906, 23452), (984, 21593), (1066, 19932), (1144, 18573), (1208, 17589), (1353, 15704), (1599, 13288), (1661, 12792), (1716, 12382), (1804, 11778), (1812, 11726), (1963, 10824), (2132, 9966), (2706, 7852), (3198, 6644), (3322, 6396), (3432, 6191), (3608, 5889), (3624, 5863), (3926, 5412), (4264, 4983)]