19561312

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 40415760

約数和(自身を除く): 20854448

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 107, 116, 197, 214, 232, 394, 428, 464, 788, 856, 928, 1576, 1712, 3103, 3152, 3424, 5713, 6206, 6304, 11426, 12412, 21079, 22852, 24824, 42158, 45704, 49648, 84316, 91408, 99296, 168632, 182816, 337264, 611291, 674528, 1222582, 2445164, 4890328, 9780656, 19561312]

約数ペア:

[(1, 19561312), (2, 9780656), (4, 4890328), (8, 2445164), (16, 1222582), (29, 674528), (32, 611291), (58, 337264), (107, 182816), (116, 168632), (197, 99296), (214, 91408), (232, 84316), (394, 49648), (428, 45704), (464, 42158), (788, 24824), (856, 22852), (928, 21079), (1576, 12412), (1712, 11426), (3103, 6304), (3152, 6206), (3424, 5713)]