19628455

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2999}}^1$

素因数の和:3039

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 11475545

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 2999, 6545, 14995, 20993, 32989, 50983, 104965, 164945, 230923, 254915, 356881, 560813, 1154615, 1784405, 2804065, 3925691, 19628455]

約数ペア:

[(1, 19628455), (5, 3925691), (7, 2804065), (11, 1784405), (17, 1154615), (35, 560813), (55, 356881), (77, 254915), (85, 230923), (119, 164945), (187, 104965), (385, 50983), (595, 32989), (935, 20993), (1309, 14995), (2999, 6545)]