20974597

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:577

約数の個数: 24

約数和(自身を含む): 26199936

約数和(自身を除く): 5225339

約数列:

[1, 7, 23, 37, 49, 161, 259, 503, 851, 1127, 1813, 3521, 5957, 11569, 18611, 24647, 41699, 80983, 130277, 428053, 566881, 911939, 2996371, 20974597]

約数ペア:

[(1, 20974597), (7, 2996371), (23, 911939), (37, 566881), (49, 428053), (161, 130277), (259, 80983), (503, 41699), (851, 24647), (1127, 18611), (1813, 11569), (3521, 5957)]