21835142

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 20742778

約数列:

[1, 2, 7, 14, 19, 23, 38, 43, 46, 83, 86, 133, 161, 166, 266, 301, 322, 437, 581, 602, 817, 874, 989, 1162, 1577, 1634, 1909, 1978, 3059, 3154, 3569, 3818, 5719, 6118, 6923, 7138, 11039, 11438, 13363, 13846, 18791, 22078, 24983, 26726, 36271, 37582, 49966, 67811, 72542, 82087, 131537, 135622, 164174, 253897, 263074, 474677, 507794, 574609, 949354, 1149218, 1559653, 3119306, 10917571, 21835142]

約数ペア:

[(1, 21835142), (2, 10917571), (7, 3119306), (14, 1559653), (19, 1149218), (23, 949354), (38, 574609), (43, 507794), (46, 474677), (83, 263074), (86, 253897), (133, 164174), (161, 135622), (166, 131537), (266, 82087), (301, 72542), (322, 67811), (437, 49966), (581, 37582), (602, 36271), (817, 26726), (874, 24983), (989, 22078), (1162, 18791), (1577, 13846), (1634, 13363), (1909, 11438), (1978, 11039), (3059, 7138), (3154, 6923), (3569, 6118), (3818, 5719)]