81302691

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 118048000

約数和(自身を除く): 36745309

約数列:

[1, 3, 19, 57, 61, 67, 183, 201, 349, 1047, 1159, 1273, 3477, 3819, 4087, 6631, 12261, 19893, 21289, 23383, 63867, 70149, 77653, 232959, 404491, 444277, 1213473, 1332831, 1426363, 4279089, 27100897, 81302691]

約数ペア:

[(1, 81302691), (3, 27100897), (19, 4279089), (57, 1426363), (61, 1332831), (67, 1213473), (183, 444277), (201, 404491), (349, 232959), (1047, 77653), (1159, 70149), (1273, 63867), (3477, 23383), (3819, 21289), (4087, 19893), (6631, 12261)]