21106575

素因数分解:

$3^4\times 5^2\times 7^1\times {\mathrm{1489}}^1$

素因数の和:1518

約数の個数: 60

約数和(自身を含む): 44711920

約数和(自身を除く): 23605345

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, 1489, 1575, 2025, 2835, 4467, 4725, 7445, 10423, 13401, 14175, 22335, 31269, 37225, 40203, 52115, 67005, 93807, 111675, 120609, 156345, 201015, 260575, 281421, 335025, 469035, 603045, 781725, 844263, 1005075, 1407105, 2345175, 3015225, 4221315, 7035525, 21106575]

約数ペア:

[(1, 21106575), (3, 7035525), (5, 4221315), (7, 3015225), (9, 2345175), (15, 1407105), (21, 1005075), (25, 844263), (27, 781725), (35, 603045), (45, 469035), (63, 335025), (75, 281421), (81, 260575), (105, 201015), (135, 156345), (175, 120609), (189, 111675), (225, 93807), (315, 67005), (405, 52115), (525, 40203), (567, 37225), (675, 31269), (945, 22335), (1489, 14175), (1575, 13401), (2025, 10423), (2835, 7445), (4467, 4725)]