21661416

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42979}}^1$

素因数の和:42998

約数の個数: 48

約数和(自身を含む): 67048800

約数和(自身を除く): 45387384

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 42979, 85958, 128937, 171916, 257874, 300853, 343832, 386811, 515748, 601706, 773622, 902559, 1031496, 1203412, 1547244, 1805118, 2406824, 2707677, 3094488, 3610236, 5415354, 7220472, 10830708, 21661416]

約数ペア:

[(1, 21661416), (2, 10830708), (3, 7220472), (4, 5415354), (6, 3610236), (7, 3094488), (8, 2707677), (9, 2406824), (12, 1805118), (14, 1547244), (18, 1203412), (21, 1031496), (24, 902559), (28, 773622), (36, 601706), (42, 515748), (56, 386811), (63, 343832), (72, 300853), (84, 257874), (126, 171916), (168, 128937), (252, 85958), (504, 42979)]