21031396048

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{45403}}^1$

素因数の和:45572

約数の個数: 80

約数和(自身を含む): 46819878336

約数和(自身を除く): 25788482288

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 131, 136, 208, 221, 262, 272, 442, 524, 884, 1048, 1703, 1768, 2096, 2227, 3406, 3536, 4454, 6812, 8908, 13624, 17816, 27248, 28951, 35632, 45403, 57902, 90806, 115804, 181612, 231608, 363224, 463216, 590239, 726448, 771851, 1180478, 1543702, 2360956, 3087404, 4721912, 5947793, 6174808, 9443824, 10034063, 11895586, 12349616, 20068126, 23791172, 40136252, 47582344, 77321309, 80272504, 95164688, 101112481, 154642618, 160545008, 202224962, 309285236, 404449924, 618570472, 808899848, 1237140944, 1314462253, 1617799696, 2628924506, 5257849012, 10515698024, 21031396048]

約数ペア:

[(1, 21031396048), (2, 10515698024), (4, 5257849012), (8, 2628924506), (13, 1617799696), (16, 1314462253), (17, 1237140944), (26, 808899848), (34, 618570472), (52, 404449924), (68, 309285236), (104, 202224962), (131, 160545008), (136, 154642618), (208, 101112481), (221, 95164688), (262, 80272504), (272, 77321309), (442, 47582344), (524, 40136252), (884, 23791172), (1048, 20068126), (1703, 12349616), (1768, 11895586), (2096, 10034063), (2227, 9443824), (3406, 6174808), (3536, 5947793), (4454, 4721912), (6812, 3087404), (8908, 2360956), (13624, 1543702), (17816, 1180478), (27248, 771851), (28951, 726448), (35632, 590239), (45403, 463216), (57902, 363224), (90806, 231608), (115804, 181612)]