998865

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{151}}^1$

素因数の和:179

約数の個数: 48

約数和(自身を含む): 2079360

約数和(自身を除く): 1080495

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 151, 189, 245, 315, 441, 453, 735, 755, 945, 1057, 1323, 1359, 2205, 2265, 3171, 4077, 5285, 6615, 6795, 7399, 9513, 15855, 20385, 22197, 28539, 36995, 47565, 66591, 110985, 142695, 199773, 332955, 998865]

約数ペア:

[(1, 998865), (3, 332955), (5, 199773), (7, 142695), (9, 110985), (15, 66591), (21, 47565), (27, 36995), (35, 28539), (45, 22197), (49, 20385), (63, 15855), (105, 9513), (135, 7399), (147, 6795), (151, 6615), (189, 5285), (245, 4077), (315, 3171), (441, 2265), (453, 2205), (735, 1359), (755, 1323), (945, 1057)]