1621800901

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{8867}}^1$

素因数の和:8973

約数の個数: 32

約数和(自身を含む): 2068727040

約数和(自身を除く): 446926139

約数列:

[1, 7, 17, 29, 53, 119, 203, 371, 493, 901, 1537, 3451, 6307, 8867, 10759, 26129, 62069, 150739, 182903, 257143, 469951, 1055173, 1800001, 3289657, 4371431, 7989167, 13628579, 30600017, 55924169, 95400053, 231685843, 1621800901]

約数ペア:

[(1, 1621800901), (7, 231685843), (17, 95400053), (29, 55924169), (53, 30600017), (119, 13628579), (203, 7989167), (371, 4371431), (493, 3289657), (901, 1800001), (1537, 1055173), (3451, 469951), (6307, 257143), (8867, 182903), (10759, 150739), (26129, 62069)]