21853738

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:378

約数の個数: 32

約数和(自身を含む): 36278928

約数和(自身を除く): 14425190

約数列:

[1, 2, 17, 34, 41, 61, 82, 122, 257, 514, 697, 1037, 1394, 2074, 2501, 4369, 5002, 8738, 10537, 15677, 21074, 31354, 42517, 85034, 179129, 266509, 358258, 533018, 642757, 1285514, 10926869, 21853738]

約数ペア:

[(1, 21853738), (2, 10926869), (17, 1285514), (34, 642757), (41, 533018), (61, 358258), (82, 266509), (122, 179129), (257, 85034), (514, 42517), (697, 31354), (1037, 21074), (1394, 15677), (2074, 10537), (2501, 8738), (4369, 5002)]