19001385

素因数分解:

$3^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:437

約数の個数: 56

約数和(自身を含む): 36908424

約数和(自身を除く): 17907039

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 243, 351, 401, 405, 585, 729, 1053, 1203, 1215, 1755, 2005, 3159, 3609, 3645, 5213, 5265, 6015, 9477, 10827, 15639, 15795, 18045, 26065, 32481, 46917, 47385, 54135, 78195, 97443, 140751, 162405, 234585, 292329, 422253, 487215, 703755, 1266759, 1461645, 2111265, 3800277, 6333795, 19001385]

約数ペア:

[(1, 19001385), (3, 6333795), (5, 3800277), (9, 2111265), (13, 1461645), (15, 1266759), (27, 703755), (39, 487215), (45, 422253), (65, 292329), (81, 234585), (117, 162405), (135, 140751), (195, 97443), (243, 78195), (351, 54135), (401, 47385), (405, 46917), (585, 32481), (729, 26065), (1053, 18045), (1203, 15795), (1215, 15639), (1755, 10827), (2005, 9477), (3159, 6015), (3609, 5265), (3645, 5213)]