21103662895

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:437

約数の個数: 96

約数和(自身を含む): 31487766912

約数和(自身を除く): 10384104017

約数列:

[1, 5, 7, 17, 35, 85, 97, 119, 137, 157, 289, 485, 595, 679, 685, 785, 959, 1099, 1445, 1649, 2023, 2329, 2669, 3395, 4795, 5495, 8245, 10115, 11543, 11645, 13289, 13345, 15229, 16303, 18683, 21509, 28033, 39593, 45373, 57715, 66445, 76145, 81515, 93023, 93415, 106603, 107545, 140165, 150563, 196231, 197965, 225913, 226865, 258893, 277151, 317611, 365653, 465115, 533015, 752815, 981155, 1129565, 1294465, 1385755, 1581391, 1588055, 1812251, 1828265, 2086373, 2559571, 3840521, 4401181, 6216101, 7906955, 9061255, 10431865, 12797855, 14604611, 19202605, 22005905, 26883647, 30808267, 31080505, 35468341, 43512707, 73023055, 134418235, 154041335, 177341705, 217563535, 248278387, 602961797, 1241391935, 3014808985, 4220732579, 21103662895]

約数ペア:

[(1, 21103662895), (5, 4220732579), (7, 3014808985), (17, 1241391935), (35, 602961797), (85, 248278387), (97, 217563535), (119, 177341705), (137, 154041335), (157, 134418235), (289, 73023055), (485, 43512707), (595, 35468341), (679, 31080505), (685, 30808267), (785, 26883647), (959, 22005905), (1099, 19202605), (1445, 14604611), (1649, 12797855), (2023, 10431865), (2329, 9061255), (2669, 7906955), (3395, 6216101), (4795, 4401181), (5495, 3840521), (8245, 2559571), (10115, 2086373), (11543, 1828265), (11645, 1812251), (13289, 1588055), (13345, 1581391), (15229, 1385755), (16303, 1294465), (18683, 1129565), (21509, 981155), (28033, 752815), (39593, 533015), (45373, 465115), (57715, 365653), (66445, 317611), (76145, 277151), (81515, 258893), (93023, 226865), (93415, 225913), (106603, 197965), (107545, 196231), (140165, 150563)]