19798974

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{401}}^1$

素因数の和:633

約数の個数: 48

約数和(自身を含む): 46532304

約数和(自身を除く): 26733330

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 211, 234, 401, 422, 633, 802, 1203, 1266, 1899, 2406, 2743, 3609, 3798, 5213, 5486, 7218, 8229, 10426, 15639, 16458, 24687, 31278, 46917, 49374, 84611, 93834, 169222, 253833, 507666, 761499, 1099943, 1522998, 2199886, 3299829, 6599658, 9899487, 19798974]

約数ペア:

[(1, 19798974), (2, 9899487), (3, 6599658), (6, 3299829), (9, 2199886), (13, 1522998), (18, 1099943), (26, 761499), (39, 507666), (78, 253833), (117, 169222), (211, 93834), (234, 84611), (401, 49374), (422, 46917), (633, 31278), (802, 24687), (1203, 16458), (1266, 15639), (1899, 10426), (2406, 8229), (2743, 7218), (3609, 5486), (3798, 5213)]