21207330

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1$

素因数の和:280

約数の個数: 96

約数和(自身を含む): 59439744

約数和(自身を除く): 38232414

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 83, 85, 90, 102, 153, 166, 167, 170, 249, 255, 306, 334, 415, 498, 501, 510, 747, 765, 830, 835, 1002, 1245, 1411, 1494, 1503, 1530, 1670, 2490, 2505, 2822, 2839, 3006, 3735, 4233, 5010, 5678, 7055, 7470, 7515, 8466, 8517, 12699, 13861, 14110, 14195, 15030, 17034, 21165, 25398, 25551, 27722, 28390, 41583, 42330, 42585, 51102, 63495, 69305, 83166, 85170, 124749, 126990, 127755, 138610, 207915, 235637, 249498, 255510, 415830, 471274, 623745, 706911, 1178185, 1247490, 1413822, 2120733, 2356370, 3534555, 4241466, 7069110, 10603665, 21207330]

約数ペア:

[(1, 21207330), (2, 10603665), (3, 7069110), (5, 4241466), (6, 3534555), (9, 2356370), (10, 2120733), (15, 1413822), (17, 1247490), (18, 1178185), (30, 706911), (34, 623745), (45, 471274), (51, 415830), (83, 255510), (85, 249498), (90, 235637), (102, 207915), (153, 138610), (166, 127755), (167, 126990), (170, 124749), (249, 85170), (255, 83166), (306, 69305), (334, 63495), (415, 51102), (498, 42585), (501, 42330), (510, 41583), (747, 28390), (765, 27722), (830, 25551), (835, 25398), (1002, 21165), (1245, 17034), (1411, 15030), (1494, 14195), (1503, 14110), (1530, 13861), (1670, 12699), (2490, 8517), (2505, 8466), (2822, 7515), (2839, 7470), (3006, 7055), (3735, 5678), (4233, 5010)]