21396996

素因数分解:

$2^2\times 3^2\times {\mathrm{149}}^1\times {\mathrm{3989}}^1$

素因数の和:4148

約数の個数: 36

約数和(自身を含む): 54463500

約数和(自身を除く): 33066504

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 149, 298, 447, 596, 894, 1341, 1788, 2682, 3989, 5364, 7978, 11967, 15956, 23934, 35901, 47868, 71802, 143604, 594361, 1188722, 1783083, 2377444, 3566166, 5349249, 7132332, 10698498, 21396996]

約数ペア:

[(1, 21396996), (2, 10698498), (3, 7132332), (4, 5349249), (6, 3566166), (9, 2377444), (12, 1783083), (18, 1188722), (36, 594361), (149, 143604), (298, 71802), (447, 47868), (596, 35901), (894, 23934), (1341, 15956), (1788, 11967), (2682, 7978), (3989, 5364)]