19559605

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1$

素因数の和:637

約数の個数: 32

約数和(自身を含む): 27675648

約数和(自身を除く): 8116043

約数列:

[1, 5, 13, 17, 31, 65, 85, 155, 221, 403, 527, 571, 1105, 2015, 2635, 2855, 6851, 7423, 9707, 17701, 34255, 37115, 48535, 88505, 126191, 230113, 300917, 630955, 1150565, 1504585, 3911921, 19559605]

約数ペア:

[(1, 19559605), (5, 3911921), (13, 1504585), (17, 1150565), (31, 630955), (65, 300917), (85, 230113), (155, 126191), (221, 88505), (403, 48535), (527, 37115), (571, 34255), (1105, 17701), (2015, 9707), (2635, 7423), (2855, 6851)]