19972575

素因数分解:

$3^4\times 5^2\times 7^1\times {\mathrm{1409}}^1$

素因数の和:1438

約数の個数: 60

約数和(自身を含む): 42311280

約数和(自身を除く): 22338705

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 105, 135, 175, 189, 225, 315, 405, 525, 567, 675, 945, 1409, 1575, 2025, 2835, 4227, 4725, 7045, 9863, 12681, 14175, 21135, 29589, 35225, 38043, 49315, 63405, 88767, 105675, 114129, 147945, 190215, 246575, 266301, 317025, 443835, 570645, 739725, 798903, 951075, 1331505, 2219175, 2853225, 3994515, 6657525, 19972575]

約数ペア:

[(1, 19972575), (3, 6657525), (5, 3994515), (7, 2853225), (9, 2219175), (15, 1331505), (21, 951075), (25, 798903), (27, 739725), (35, 570645), (45, 443835), (63, 317025), (75, 266301), (81, 246575), (105, 190215), (135, 147945), (175, 114129), (189, 105675), (225, 88767), (315, 63405), (405, 49315), (525, 38043), (567, 35225), (675, 29589), (945, 21135), (1409, 14175), (1575, 12681), (2025, 9863), (2835, 7045), (4227, 4725)]