17986887

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:300

約数の個数: 32

約数和(自身を含む): 27656960

約数和(自身を除く): 9670073

約数列:

[1, 3, 9, 27, 61, 67, 163, 183, 201, 489, 549, 603, 1467, 1647, 1809, 4087, 4401, 9943, 10921, 12261, 29829, 32763, 36783, 89487, 98289, 110349, 268461, 294867, 666181, 1998543, 5995629, 17986887]

約数ペア:

[(1, 17986887), (3, 5995629), (9, 1998543), (27, 666181), (61, 294867), (67, 268461), (163, 110349), (183, 98289), (201, 89487), (489, 36783), (549, 32763), (603, 29829), (1467, 12261), (1647, 10921), (1809, 9943), (4087, 4401)]