20207838

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:441

約数の個数: 64

約数和(自身を含む): 48936960

約数和(自身を除く): 28729122

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 47, 58, 87, 94, 141, 174, 203, 282, 329, 353, 406, 609, 658, 706, 987, 1059, 1218, 1363, 1974, 2118, 2471, 2726, 4089, 4942, 7413, 8178, 9541, 10237, 14826, 16591, 19082, 20474, 28623, 30711, 33182, 49773, 57246, 61422, 71659, 99546, 116137, 143318, 214977, 232274, 348411, 429954, 481139, 696822, 962278, 1443417, 2886834, 3367973, 6735946, 10103919, 20207838]

約数ペア:

[(1, 20207838), (2, 10103919), (3, 6735946), (6, 3367973), (7, 2886834), (14, 1443417), (21, 962278), (29, 696822), (42, 481139), (47, 429954), (58, 348411), (87, 232274), (94, 214977), (141, 143318), (174, 116137), (203, 99546), (282, 71659), (329, 61422), (353, 57246), (406, 49773), (609, 33182), (658, 30711), (706, 28623), (987, 20474), (1059, 19082), (1218, 16591), (1363, 14826), (1974, 10237), (2118, 9541), (2471, 8178), (2726, 7413), (4089, 4942)]