21421638

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{56671}}^1$

素因数の和:56689

約数の個数: 32

約数和(自身を含む): 54405120

約数和(自身を除く): 32983482

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 56671, 113342, 170013, 340026, 396697, 510039, 793394, 1020078, 1190091, 1530117, 2380182, 3060234, 3570273, 7140546, 10710819, 21421638]

約数ペア:

[(1, 21421638), (2, 10710819), (3, 7140546), (6, 3570273), (7, 3060234), (9, 2380182), (14, 1530117), (18, 1190091), (21, 1020078), (27, 793394), (42, 510039), (54, 396697), (63, 340026), (126, 170013), (189, 113342), (378, 56671)]