21368970

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{317}}^1$

素因数の和:444

約数の個数: 96

約数和(自身を含む): 64291968

約数和(自身を除く): 42922998

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 107, 126, 210, 214, 315, 317, 321, 535, 630, 634, 642, 749, 951, 963, 1070, 1498, 1585, 1605, 1902, 1926, 2219, 2247, 2853, 3170, 3210, 3745, 4438, 4494, 4755, 4815, 5706, 6657, 6741, 7490, 9510, 9630, 11095, 11235, 13314, 13482, 14265, 19971, 22190, 22470, 28530, 33285, 33705, 33919, 39942, 66570, 67410, 67838, 99855, 101757, 169595, 199710, 203514, 237433, 305271, 339190, 474866, 508785, 610542, 712299, 1017570, 1187165, 1424598, 1526355, 2136897, 2374330, 3052710, 3561495, 4273794, 7122990, 10684485, 21368970]

約数ペア:

[(1, 21368970), (2, 10684485), (3, 7122990), (5, 4273794), (6, 3561495), (7, 3052710), (9, 2374330), (10, 2136897), (14, 1526355), (15, 1424598), (18, 1187165), (21, 1017570), (30, 712299), (35, 610542), (42, 508785), (45, 474866), (63, 339190), (70, 305271), (90, 237433), (105, 203514), (107, 199710), (126, 169595), (210, 101757), (214, 99855), (315, 67838), (317, 67410), (321, 66570), (535, 39942), (630, 33919), (634, 33705), (642, 33285), (749, 28530), (951, 22470), (963, 22190), (1070, 19971), (1498, 14265), (1585, 13482), (1605, 13314), (1902, 11235), (1926, 11095), (2219, 9630), (2247, 9510), (2853, 7490), (3170, 6741), (3210, 6657), (3745, 5706), (4438, 4815), (4494, 4755)]