21870036

素因数分解:

$2^2\times 3^2\times {\mathrm{163}}^1\times {\mathrm{3727}}^1$

素因数の和:3900

約数の個数: 36

約数和(自身を含む): 55636672

約数和(自身を除く): 33766636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 163, 326, 489, 652, 978, 1467, 1956, 2934, 3727, 5868, 7454, 11181, 14908, 22362, 33543, 44724, 67086, 134172, 607501, 1215002, 1822503, 2430004, 3645006, 5467509, 7290012, 10935018, 21870036]

約数ペア:

[(1, 21870036), (2, 10935018), (3, 7290012), (4, 5467509), (6, 3645006), (9, 2430004), (12, 1822503), (18, 1215002), (36, 607501), (163, 134172), (326, 67086), (489, 44724), (652, 33543), (978, 22362), (1467, 14908), (1956, 11181), (2934, 7454), (3727, 5868)]