21820284

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:144

約数の個数: 108

約数和(自身を含む): 61575696

約数和(自身を除く): 39755412

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 36, 38, 46, 57, 69, 73, 76, 92, 114, 138, 146, 171, 207, 219, 228, 276, 292, 342, 361, 414, 437, 438, 657, 684, 722, 828, 874, 876, 1083, 1311, 1314, 1387, 1444, 1679, 1748, 2166, 2622, 2628, 2774, 3249, 3358, 3933, 4161, 4332, 5037, 5244, 5548, 6498, 6716, 7866, 8303, 8322, 10074, 12483, 12996, 15111, 15732, 16606, 16644, 20148, 24909, 24966, 26353, 30222, 31901, 33212, 49818, 49932, 52706, 60444, 63802, 74727, 79059, 95703, 99636, 105412, 127604, 149454, 158118, 191406, 237177, 287109, 298908, 316236, 382812, 474354, 574218, 606119, 948708, 1148436, 1212238, 1818357, 2424476, 3636714, 5455071, 7273428, 10910142, 21820284]

約数ペア:

[(1, 21820284), (2, 10910142), (3, 7273428), (4, 5455071), (6, 3636714), (9, 2424476), (12, 1818357), (18, 1212238), (19, 1148436), (23, 948708), (36, 606119), (38, 574218), (46, 474354), (57, 382812), (69, 316236), (73, 298908), (76, 287109), (92, 237177), (114, 191406), (138, 158118), (146, 149454), (171, 127604), (207, 105412), (219, 99636), (228, 95703), (276, 79059), (292, 74727), (342, 63802), (361, 60444), (414, 52706), (437, 49932), (438, 49818), (657, 33212), (684, 31901), (722, 30222), (828, 26353), (874, 24966), (876, 24909), (1083, 20148), (1311, 16644), (1314, 16606), (1387, 15732), (1444, 15111), (1679, 12996), (1748, 12483), (2166, 10074), (2622, 8322), (2628, 8303), (2774, 7866), (3249, 6716), (3358, 6498), (3933, 5548), (4161, 5244), (4332, 5037)]