21255012

素因数分解:

$2^2\times 3^2\times {\mathrm{131}}^1\times {\mathrm{4507}}^1$

素因数の和:4648

約数の個数: 36

約数和(自身を含む): 54150096

約数和(自身を除く): 32895084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 131, 262, 393, 524, 786, 1179, 1572, 2358, 4507, 4716, 9014, 13521, 18028, 27042, 40563, 54084, 81126, 162252, 590417, 1180834, 1771251, 2361668, 3542502, 5313753, 7085004, 10627506, 21255012]

約数ペア:

[(1, 21255012), (2, 10627506), (3, 7085004), (4, 5313753), (6, 3542502), (9, 2361668), (12, 1771251), (18, 1180834), (36, 590417), (131, 162252), (262, 81126), (393, 54084), (524, 40563), (786, 27042), (1179, 18028), (1572, 13521), (2358, 9014), (4507, 4716)]