21315798

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{18797}}^1$

素因数の和:18818

約数の個数: 40

約数和(自身を含む): 54589392

約数和(自身を除く): 33273594

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 18797, 37594, 56391, 112782, 131579, 169173, 263158, 338346, 394737, 507519, 789474, 1015038, 1184211, 1522557, 2368422, 3045114, 3552633, 7105266, 10657899, 21315798]

約数ペア:

[(1, 21315798), (2, 10657899), (3, 7105266), (6, 3552633), (7, 3045114), (9, 2368422), (14, 1522557), (18, 1184211), (21, 1015038), (27, 789474), (42, 507519), (54, 394737), (63, 338346), (81, 263158), (126, 169173), (162, 131579), (189, 112782), (378, 56391), (567, 37594), (1134, 18797)]