21696930

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:225

約数の個数: 128

約数和(自身を含む): 63763200

約数和(自身を除く): 42066270

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 29, 30, 34, 45, 51, 54, 58, 85, 87, 90, 102, 135, 145, 153, 163, 170, 174, 255, 261, 270, 290, 306, 326, 435, 459, 489, 493, 510, 522, 765, 783, 815, 870, 918, 978, 986, 1305, 1467, 1479, 1530, 1566, 1630, 2295, 2445, 2465, 2610, 2771, 2934, 2958, 3915, 4401, 4437, 4590, 4727, 4890, 4930, 5542, 7335, 7395, 7830, 8313, 8802, 8874, 9454, 13311, 13855, 14181, 14670, 14790, 16626, 22005, 22185, 23635, 24939, 26622, 27710, 28362, 41565, 42543, 44010, 44370, 47270, 49878, 66555, 70905, 74817, 80359, 83130, 85086, 124695, 127629, 133110, 141810, 149634, 160718, 212715, 241077, 249390, 255258, 374085, 401795, 425430, 482154, 638145, 723231, 748170, 803590, 1205385, 1276290, 1446462, 2169693, 2410770, 3616155, 4339386, 7232310, 10848465, 21696930]

約数ペア:

[(1, 21696930), (2, 10848465), (3, 7232310), (5, 4339386), (6, 3616155), (9, 2410770), (10, 2169693), (15, 1446462), (17, 1276290), (18, 1205385), (27, 803590), (29, 748170), (30, 723231), (34, 638145), (45, 482154), (51, 425430), (54, 401795), (58, 374085), (85, 255258), (87, 249390), (90, 241077), (102, 212715), (135, 160718), (145, 149634), (153, 141810), (163, 133110), (170, 127629), (174, 124695), (255, 85086), (261, 83130), (270, 80359), (290, 74817), (306, 70905), (326, 66555), (435, 49878), (459, 47270), (489, 44370), (493, 44010), (510, 42543), (522, 41565), (765, 28362), (783, 27710), (815, 26622), (870, 24939), (918, 23635), (978, 22185), (986, 22005), (1305, 16626), (1467, 14790), (1479, 14670), (1530, 14181), (1566, 13855), (1630, 13311), (2295, 9454), (2445, 8874), (2465, 8802), (2610, 8313), (2771, 7830), (2934, 7395), (2958, 7335), (3915, 5542), (4401, 4930), (4437, 4890), (4590, 4727)]