1291268139

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{20101}}^1$

素因数の和:20160

約数の個数: 48

約数和(自身を含む): 2199962880

約数和(自身を除く): 908694741

約数列:

[1, 3, 7, 19, 21, 23, 49, 57, 69, 133, 147, 161, 399, 437, 483, 931, 1127, 1311, 2793, 3059, 3381, 9177, 20101, 21413, 60303, 64239, 140707, 381919, 422121, 462323, 984949, 1145757, 1386969, 2673433, 2954847, 3236261, 8020299, 8784137, 9708783, 18714031, 22653827, 26352411, 56142093, 61488959, 67961481, 184466877, 430422713, 1291268139]

約数ペア:

[(1, 1291268139), (3, 430422713), (7, 184466877), (19, 67961481), (21, 61488959), (23, 56142093), (49, 26352411), (57, 22653827), (69, 18714031), (133, 9708783), (147, 8784137), (161, 8020299), (399, 3236261), (437, 2954847), (483, 2673433), (931, 1386969), (1127, 1145757), (1311, 984949), (2793, 462323), (3059, 422121), (3381, 381919), (9177, 140707), (20101, 64239), (21413, 60303)]