21139404

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 59006976

約数和(自身を除く): 37867572

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 97, 127, 132, 143, 156, 194, 254, 286, 291, 381, 388, 429, 508, 572, 582, 762, 858, 1067, 1164, 1261, 1397, 1524, 1651, 1716, 2134, 2522, 2794, 3201, 3302, 3783, 4191, 4268, 4953, 5044, 5588, 6402, 6604, 7566, 8382, 9906, 12319, 12804, 13871, 15132, 16764, 18161, 19812, 24638, 27742, 36322, 36957, 41613, 49276, 54483, 55484, 72644, 73914, 83226, 108966, 135509, 147828, 160147, 166452, 217932, 271018, 320294, 406527, 480441, 542036, 640588, 813054, 960882, 1626108, 1761617, 1921764, 3523234, 5284851, 7046468, 10569702, 21139404]

約数ペア:

[(1, 21139404), (2, 10569702), (3, 7046468), (4, 5284851), (6, 3523234), (11, 1921764), (12, 1761617), (13, 1626108), (22, 960882), (26, 813054), (33, 640588), (39, 542036), (44, 480441), (52, 406527), (66, 320294), (78, 271018), (97, 217932), (127, 166452), (132, 160147), (143, 147828), (156, 135509), (194, 108966), (254, 83226), (286, 73914), (291, 72644), (381, 55484), (388, 54483), (429, 49276), (508, 41613), (572, 36957), (582, 36322), (762, 27742), (858, 24638), (1067, 19812), (1164, 18161), (1261, 16764), (1397, 15132), (1524, 13871), (1651, 12804), (1716, 12319), (2134, 9906), (2522, 8382), (2794, 7566), (3201, 6604), (3302, 6402), (3783, 5588), (4191, 5044), (4268, 4953)]