18969795

素因数分解:

$3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1201}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 36752352

約数和(自身を除く): 17782557

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 243, 351, 405, 585, 1053, 1201, 1215, 1755, 3159, 3603, 5265, 6005, 10809, 15613, 15795, 18015, 32427, 46839, 54045, 78065, 97281, 140517, 162135, 234195, 291843, 421551, 486405, 702585, 1264653, 1459215, 2107755, 3793959, 6323265, 18969795]

約数ペア:

[(1, 18969795), (3, 6323265), (5, 3793959), (9, 2107755), (13, 1459215), (15, 1264653), (27, 702585), (39, 486405), (45, 421551), (65, 291843), (81, 234195), (117, 162135), (135, 140517), (195, 97281), (243, 78065), (351, 54045), (405, 46839), (585, 32427), (1053, 18015), (1201, 15795), (1215, 15613), (1755, 10809), (3159, 6005), (3603, 5265)]