21014744415

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{208697}}^1$

素因数の和:208856

約数の個数: 48

約数和(自身を含む): 39398843232

約数和(自身を除く): 18384098817

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 137, 147, 245, 411, 685, 735, 959, 2055, 2877, 4795, 6713, 14385, 20139, 33565, 100695, 208697, 626091, 1043485, 1460879, 3130455, 4382637, 7304395, 10226153, 21913185, 28591489, 30678459, 51130765, 85774467, 142957445, 153392295, 200140423, 428872335, 600421269, 1000702115, 1400982961, 3002106345, 4202948883, 7004914805, 21014744415]

約数ペア:

[(1, 21014744415), (3, 7004914805), (5, 4202948883), (7, 3002106345), (15, 1400982961), (21, 1000702115), (35, 600421269), (49, 428872335), (105, 200140423), (137, 153392295), (147, 142957445), (245, 85774467), (411, 51130765), (685, 30678459), (735, 28591489), (959, 21913185), (2055, 10226153), (2877, 7304395), (4795, 4382637), (6713, 3130455), (14385, 1460879), (20139, 1043485), (33565, 626091), (100695, 208697)]