211326507

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{373}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 387170784

約数和(自身を除く): 175844277

約数列:

[1, 3, 7, 9, 17, 21, 23, 51, 63, 69, 119, 153, 161, 207, 357, 373, 391, 483, 529, 1071, 1119, 1173, 1449, 1587, 2611, 2737, 3357, 3519, 3703, 4761, 6341, 7833, 8211, 8579, 8993, 11109, 19023, 23499, 24633, 25737, 26979, 33327, 44387, 57069, 60053, 62951, 77211, 80937, 133161, 145843, 180159, 188853, 197317, 399483, 437529, 540477, 566559, 591951, 1020901, 1312587, 1381219, 1775853, 3062703, 3354389, 4143657, 9188109, 10063167, 12430971, 23480723, 30189501, 70442169, 211326507]

約数ペア:

[(1, 211326507), (3, 70442169), (7, 30189501), (9, 23480723), (17, 12430971), (21, 10063167), (23, 9188109), (51, 4143657), (63, 3354389), (69, 3062703), (119, 1775853), (153, 1381219), (161, 1312587), (207, 1020901), (357, 591951), (373, 566559), (391, 540477), (483, 437529), (529, 399483), (1071, 197317), (1119, 188853), (1173, 180159), (1449, 145843), (1587, 133161), (2611, 80937), (2737, 77211), (3357, 62951), (3519, 60053), (3703, 57069), (4761, 44387), (6341, 33327), (7833, 26979), (8211, 25737), (8579, 24633), (8993, 23499), (11109, 19023)]