21866012

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 47029248

約数和(自身を除く): 25163236

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 71, 119, 142, 238, 284, 476, 497, 647, 994, 1207, 1294, 1988, 2414, 2588, 4529, 4828, 8449, 9058, 10999, 16898, 18116, 21998, 33796, 43996, 45937, 76993, 91874, 153986, 183748, 307972, 321559, 643118, 780929, 1286236, 1561858, 3123716, 5466503, 10933006, 21866012]

約数ペア:

[(1, 21866012), (2, 10933006), (4, 5466503), (7, 3123716), (14, 1561858), (17, 1286236), (28, 780929), (34, 643118), (68, 321559), (71, 307972), (119, 183748), (142, 153986), (238, 91874), (284, 76993), (476, 45937), (497, 43996), (647, 33796), (994, 21998), (1207, 18116), (1294, 16898), (1988, 10999), (2414, 9058), (2588, 8449), (4529, 4828)]