21206604

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 51645440

約数和(自身を除く): 30438836

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 93, 109, 124, 186, 218, 327, 372, 436, 523, 654, 1046, 1308, 1569, 2092, 3138, 3379, 6276, 6758, 10137, 13516, 16213, 20274, 32426, 40548, 48639, 57007, 64852, 97278, 114014, 171021, 194556, 228028, 342042, 684084, 1767217, 3534434, 5301651, 7068868, 10603302, 21206604]

約数ペア:

[(1, 21206604), (2, 10603302), (3, 7068868), (4, 5301651), (6, 3534434), (12, 1767217), (31, 684084), (62, 342042), (93, 228028), (109, 194556), (124, 171021), (186, 114014), (218, 97278), (327, 64852), (372, 57007), (436, 48639), (523, 40548), (654, 32426), (1046, 20274), (1308, 16213), (1569, 13516), (2092, 10137), (3138, 6758), (3379, 6276)]