19921048

素因数分解:

$2^3\times 7^2\times {\mathrm{89}}^1\times {\mathrm{571}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 44015400

約数和(自身を除く): 24094352

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 89, 98, 178, 196, 356, 392, 571, 623, 712, 1142, 1246, 2284, 2492, 3997, 4361, 4568, 4984, 7994, 8722, 15988, 17444, 27979, 31976, 34888, 50819, 55958, 101638, 111916, 203276, 223832, 355733, 406552, 711466, 1422932, 2490131, 2845864, 4980262, 9960524, 19921048]

約数ペア:

[(1, 19921048), (2, 9960524), (4, 4980262), (7, 2845864), (8, 2490131), (14, 1422932), (28, 711466), (49, 406552), (56, 355733), (89, 223832), (98, 203276), (178, 111916), (196, 101638), (356, 55958), (392, 50819), (571, 34888), (623, 31976), (712, 27979), (1142, 17444), (1246, 15988), (2284, 8722), (2492, 7994), (3997, 4984), (4361, 4568)]