19081575

素因数分解:

$3^7\times 5^2\times {\mathrm{349}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 35588000

約数和(自身を除く): 16506425

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 349, 405, 675, 729, 1047, 1215, 1745, 2025, 2187, 3141, 3645, 5235, 6075, 8725, 9423, 10935, 15705, 18225, 26175, 28269, 47115, 54675, 78525, 84807, 141345, 235575, 254421, 424035, 706725, 763263, 1272105, 2120175, 3816315, 6360525, 19081575]

約数ペア:

[(1, 19081575), (3, 6360525), (5, 3816315), (9, 2120175), (15, 1272105), (25, 763263), (27, 706725), (45, 424035), (75, 254421), (81, 235575), (135, 141345), (225, 84807), (243, 78525), (349, 54675), (405, 47115), (675, 28269), (729, 26175), (1047, 18225), (1215, 15705), (1745, 10935), (2025, 9423), (2187, 8725), (3141, 6075), (3645, 5235)]