20022219

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 35692800

約数和(自身を除く): 15670581

約数列:

[1, 3, 7, 9, 19, 21, 43, 57, 63, 129, 133, 171, 301, 387, 389, 399, 817, 903, 1167, 1197, 2451, 2709, 2723, 3501, 5719, 7353, 7391, 8169, 16727, 17157, 22173, 24507, 50181, 51471, 51737, 66519, 117089, 150543, 155211, 317813, 351267, 465633, 953439, 1053801, 2224691, 2860317, 6674073, 20022219]

約数ペア:

[(1, 20022219), (3, 6674073), (7, 2860317), (9, 2224691), (19, 1053801), (21, 953439), (43, 465633), (57, 351267), (63, 317813), (129, 155211), (133, 150543), (171, 117089), (301, 66519), (387, 51737), (389, 51471), (399, 50181), (817, 24507), (903, 22173), (1167, 17157), (1197, 16727), (2451, 8169), (2709, 7391), (2723, 7353), (3501, 5719)]