72171519

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{653}}^1$

素因数の和:959

約数の個数: 32

約数和(自身を含む): 116359680

約数和(自身を除く): 44188161

約数列:

[1, 3, 7, 19, 21, 57, 133, 277, 399, 653, 831, 1939, 1959, 4571, 5263, 5817, 12407, 13713, 15789, 36841, 37221, 86849, 110523, 180881, 260547, 542643, 1266167, 3436739, 3798501, 10310217, 24057173, 72171519]

約数ペア:

[(1, 72171519), (3, 24057173), (7, 10310217), (19, 3798501), (21, 3436739), (57, 1266167), (133, 542643), (277, 260547), (399, 180881), (653, 110523), (831, 86849), (1939, 37221), (1959, 36841), (4571, 15789), (5263, 13713), (5817, 12407)]