21273936

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:117

約数の個数: 120

約数和(自身を含む): 62210304

約数和(自身を除く): 40936368

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 29, 31, 34, 48, 51, 58, 62, 68, 87, 93, 102, 116, 124, 136, 174, 186, 204, 232, 248, 272, 348, 372, 408, 464, 493, 496, 527, 696, 744, 816, 841, 899, 986, 1054, 1392, 1479, 1488, 1581, 1682, 1798, 1972, 2108, 2523, 2697, 2958, 3162, 3364, 3596, 3944, 4216, 5046, 5394, 5916, 6324, 6728, 7192, 7888, 8432, 10092, 10788, 11832, 12648, 13456, 14297, 14384, 15283, 20184, 21576, 23664, 25296, 26071, 28594, 30566, 40368, 42891, 43152, 45849, 52142, 57188, 61132, 78213, 85782, 91698, 104284, 114376, 122264, 156426, 171564, 183396, 208568, 228752, 244528, 312852, 343128, 366792, 417136, 443207, 625704, 686256, 733584, 886414, 1251408, 1329621, 1772828, 2659242, 3545656, 5318484, 7091312, 10636968, 21273936]

約数ペア:

[(1, 21273936), (2, 10636968), (3, 7091312), (4, 5318484), (6, 3545656), (8, 2659242), (12, 1772828), (16, 1329621), (17, 1251408), (24, 886414), (29, 733584), (31, 686256), (34, 625704), (48, 443207), (51, 417136), (58, 366792), (62, 343128), (68, 312852), (87, 244528), (93, 228752), (102, 208568), (116, 183396), (124, 171564), (136, 156426), (174, 122264), (186, 114376), (204, 104284), (232, 91698), (248, 85782), (272, 78213), (348, 61132), (372, 57188), (408, 52142), (464, 45849), (493, 43152), (496, 42891), (527, 40368), (696, 30566), (744, 28594), (816, 26071), (841, 25296), (899, 23664), (986, 21576), (1054, 20184), (1392, 15283), (1479, 14384), (1488, 14297), (1581, 13456), (1682, 12648), (1798, 11832), (1972, 10788), (2108, 10092), (2523, 8432), (2697, 7888), (2958, 7192), (3162, 6728), (3364, 6324), (3596, 5916), (3944, 5394), (4216, 5046)]