521008747

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{431}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 642816000

約数和(自身を除く): 121807253

約数列:

[1, 7, 19, 61, 133, 149, 427, 431, 1043, 1159, 2831, 3017, 8113, 8189, 9089, 19817, 26291, 57323, 63623, 64219, 172691, 184037, 449533, 499529, 1208837, 1220161, 3496703, 3917359, 8541127, 27421513, 74429821, 521008747]

約数ペア:

[(1, 521008747), (7, 74429821), (19, 27421513), (61, 8541127), (133, 3917359), (149, 3496703), (427, 1220161), (431, 1208837), (1043, 499529), (1159, 449533), (2831, 184037), (3017, 172691), (8113, 64219), (8189, 63623), (9089, 57323), (19817, 26291)]