18844749

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 34504704

約数和(自身を除く): 15659955

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 71, 77, 99, 213, 231, 383, 497, 639, 693, 781, 1149, 1491, 2343, 2681, 3447, 4213, 4473, 5467, 7029, 8043, 12639, 16401, 24129, 27193, 29491, 37917, 49203, 81579, 88473, 190351, 244737, 265419, 299123, 571053, 897369, 1713159, 2093861, 2692107, 6281583, 18844749]

約数ペア:

[(1, 18844749), (3, 6281583), (7, 2692107), (9, 2093861), (11, 1713159), (21, 897369), (33, 571053), (63, 299123), (71, 265419), (77, 244737), (99, 190351), (213, 88473), (231, 81579), (383, 49203), (497, 37917), (639, 29491), (693, 27193), (781, 24129), (1149, 16401), (1491, 12639), (2343, 8043), (2681, 7029), (3447, 5467), (4213, 4473)]