21358722

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{557}}^1$

素因数の和:663

約数の個数: 64

約数和(自身を含む): 53996544

約数和(自身を除く): 32637822

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 83, 154, 166, 231, 249, 462, 498, 557, 581, 913, 1114, 1162, 1671, 1743, 1826, 2739, 3342, 3486, 3899, 5478, 6127, 6391, 7798, 11697, 12254, 12782, 18381, 19173, 23394, 36762, 38346, 42889, 46231, 85778, 92462, 128667, 138693, 257334, 277386, 323617, 508541, 647234, 970851, 1017082, 1525623, 1941702, 3051246, 3559787, 7119574, 10679361, 21358722]

約数ペア:

[(1, 21358722), (2, 10679361), (3, 7119574), (6, 3559787), (7, 3051246), (11, 1941702), (14, 1525623), (21, 1017082), (22, 970851), (33, 647234), (42, 508541), (66, 323617), (77, 277386), (83, 257334), (154, 138693), (166, 128667), (231, 92462), (249, 85778), (462, 46231), (498, 42889), (557, 38346), (581, 36762), (913, 23394), (1114, 19173), (1162, 18381), (1671, 12782), (1743, 12254), (1826, 11697), (2739, 7798), (3342, 6391), (3486, 6127), (3899, 5478)]