21199626

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{311}}^1\times {\mathrm{541}}^1$

素因数の和:867

約数の個数: 48

約数和(自身を含む): 52760448

約数和(自身を除く): 31560822

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 311, 541, 622, 933, 1082, 1623, 1866, 2177, 2799, 3246, 3787, 4354, 4869, 5598, 6531, 7574, 9738, 11361, 13062, 19593, 22722, 34083, 39186, 68166, 168251, 336502, 504753, 1009506, 1177757, 1514259, 2355514, 3028518, 3533271, 7066542, 10599813, 21199626]

約数ペア:

[(1, 21199626), (2, 10599813), (3, 7066542), (6, 3533271), (7, 3028518), (9, 2355514), (14, 1514259), (18, 1177757), (21, 1009506), (42, 504753), (63, 336502), (126, 168251), (311, 68166), (541, 39186), (622, 34083), (933, 22722), (1082, 19593), (1623, 13062), (1866, 11361), (2177, 9738), (2799, 7574), (3246, 6531), (3787, 5598), (4354, 4869)]