21130189652

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{311}}^1\times {\mathrm{9137}}^1$

素因数の和:9489

約数の個数: 72

約数和(自身を含む): 43826432832

約数和(自身を除く): 22696243180

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 169, 286, 311, 338, 572, 622, 676, 1244, 1859, 3421, 3718, 4043, 6842, 7436, 8086, 9137, 13684, 16172, 18274, 36548, 44473, 52559, 88946, 100507, 105118, 118781, 177892, 201014, 210236, 237562, 402028, 475124, 578149, 1156298, 1306591, 1544153, 2312596, 2613182, 2841607, 3088306, 5226364, 5683214, 6176612, 11366428, 16985683, 31257677, 33971366, 36940891, 62515354, 67942732, 73881782, 125030708, 147763564, 406349801, 480231583, 812699602, 960463166, 1625399204, 1920926332, 5282547413, 10565094826, 21130189652]

約数ペア:

[(1, 21130189652), (2, 10565094826), (4, 5282547413), (11, 1920926332), (13, 1625399204), (22, 960463166), (26, 812699602), (44, 480231583), (52, 406349801), (143, 147763564), (169, 125030708), (286, 73881782), (311, 67942732), (338, 62515354), (572, 36940891), (622, 33971366), (676, 31257677), (1244, 16985683), (1859, 11366428), (3421, 6176612), (3718, 5683214), (4043, 5226364), (6842, 3088306), (7436, 2841607), (8086, 2613182), (9137, 2312596), (13684, 1544153), (16172, 1306591), (18274, 1156298), (36548, 578149), (44473, 475124), (52559, 402028), (88946, 237562), (100507, 210236), (105118, 201014), (118781, 177892)]