19438671

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{541}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 31219200

約数和(自身を除く): 11780529

約数列:

[1, 3, 7, 21, 29, 59, 87, 177, 203, 413, 541, 609, 1239, 1623, 1711, 3787, 5133, 11361, 11977, 15689, 31919, 35931, 47067, 95757, 109823, 223433, 329469, 670299, 925651, 2776953, 6479557, 19438671]

約数ペア:

[(1, 19438671), (3, 6479557), (7, 2776953), (21, 925651), (29, 670299), (59, 329469), (87, 223433), (177, 109823), (203, 95757), (413, 47067), (541, 35931), (609, 31919), (1239, 15689), (1623, 11977), (1711, 11361), (3787, 5133)]