21505134

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:325

約数の個数: 64

約数和(自身を含む): 51609600

約数和(自身を除く): 30104466

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 83, 93, 166, 186, 199, 217, 249, 398, 434, 498, 581, 597, 651, 1162, 1194, 1302, 1393, 1743, 2573, 2786, 3486, 4179, 5146, 6169, 7719, 8358, 12338, 15438, 16517, 18011, 18507, 33034, 36022, 37014, 43183, 49551, 54033, 86366, 99102, 108066, 115619, 129549, 231238, 259098, 346857, 512027, 693714, 1024054, 1536081, 3072162, 3584189, 7168378, 10752567, 21505134]

約数ペア:

[(1, 21505134), (2, 10752567), (3, 7168378), (6, 3584189), (7, 3072162), (14, 1536081), (21, 1024054), (31, 693714), (42, 512027), (62, 346857), (83, 259098), (93, 231238), (166, 129549), (186, 115619), (199, 108066), (217, 99102), (249, 86366), (398, 54033), (434, 49551), (498, 43183), (581, 37014), (597, 36022), (651, 33034), (1162, 18507), (1194, 18011), (1302, 16517), (1393, 15438), (1743, 12338), (2573, 8358), (2786, 7719), (3486, 6169), (4179, 5146)]