81213972

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{2341}}^1$

素因数の和:2421

約数の個数: 72

約数和(自身を含む): 224269920

約数和(自身を除く): 143055948

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 59, 84, 98, 118, 147, 177, 196, 236, 294, 354, 413, 588, 708, 826, 1239, 1652, 2341, 2478, 2891, 4682, 4956, 5782, 7023, 8673, 9364, 11564, 14046, 16387, 17346, 28092, 32774, 34692, 49161, 65548, 98322, 114709, 138119, 196644, 229418, 276238, 344127, 414357, 458836, 552476, 688254, 828714, 966833, 1376508, 1657428, 1933666, 2900499, 3867332, 5800998, 6767831, 11601996, 13535662, 20303493, 27071324, 40606986, 81213972]

約数ペア:

[(1, 81213972), (2, 40606986), (3, 27071324), (4, 20303493), (6, 13535662), (7, 11601996), (12, 6767831), (14, 5800998), (21, 3867332), (28, 2900499), (42, 1933666), (49, 1657428), (59, 1376508), (84, 966833), (98, 828714), (118, 688254), (147, 552476), (177, 458836), (196, 414357), (236, 344127), (294, 276238), (354, 229418), (413, 196644), (588, 138119), (708, 114709), (826, 98322), (1239, 65548), (1652, 49161), (2341, 34692), (2478, 32774), (2891, 28092), (4682, 17346), (4956, 16387), (5782, 14046), (7023, 11564), (8673, 9364)]