19707597

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{617}}^1$

素因数の和:659

約数の個数: 48

約数和(自身を含む): 36190080

約数和(自身を除く): 16482483

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 169, 189, 273, 351, 507, 617, 819, 1183, 1521, 1851, 2457, 3549, 4319, 4563, 5553, 8021, 10647, 12957, 16659, 24063, 31941, 38871, 56147, 72189, 104273, 116613, 168441, 216567, 312819, 505323, 729911, 938457, 1515969, 2189733, 2815371, 6569199, 19707597]

約数ペア:

[(1, 19707597), (3, 6569199), (7, 2815371), (9, 2189733), (13, 1515969), (21, 938457), (27, 729911), (39, 505323), (63, 312819), (91, 216567), (117, 168441), (169, 116613), (189, 104273), (273, 72189), (351, 56147), (507, 38871), (617, 31941), (819, 24063), (1183, 16659), (1521, 12957), (1851, 10647), (2457, 8021), (3549, 5553), (4319, 4563)]