19564155

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{631}}^1$

素因数の和:708

約数の個数: 48

約数和(自身を含む): 37267776

約数和(自身を除く): 17703621

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 53, 65, 117, 159, 195, 265, 477, 585, 631, 689, 795, 1893, 2067, 2385, 3155, 3445, 5679, 6201, 8203, 9465, 10335, 24609, 28395, 31005, 33443, 41015, 73827, 100329, 123045, 167215, 300987, 369135, 434759, 501645, 1304277, 1504935, 2173795, 3912831, 6521385, 19564155]

約数ペア:

[(1, 19564155), (3, 6521385), (5, 3912831), (9, 2173795), (13, 1504935), (15, 1304277), (39, 501645), (45, 434759), (53, 369135), (65, 300987), (117, 167215), (159, 123045), (195, 100329), (265, 73827), (477, 41015), (585, 33443), (631, 31005), (689, 28395), (795, 24609), (1893, 10335), (2067, 9465), (2385, 8203), (3155, 6201), (3445, 5679)]