19935090

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31643}}^1$

素因数の和:31663

約数の個数: 48

約数和(自身を含む): 59237568

約数和(自身を除く): 39302478

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 31643, 63286, 94929, 158215, 189858, 221501, 284787, 316430, 443002, 474645, 569574, 664503, 949290, 1107505, 1329006, 1423935, 1993509, 2215010, 2847870, 3322515, 3987018, 6645030, 9967545, 19935090]

約数ペア:

[(1, 19935090), (2, 9967545), (3, 6645030), (5, 3987018), (6, 3322515), (7, 2847870), (9, 2215010), (10, 1993509), (14, 1423935), (15, 1329006), (18, 1107505), (21, 949290), (30, 664503), (35, 569574), (42, 474645), (45, 443002), (63, 316430), (70, 284787), (90, 221501), (105, 189858), (126, 158215), (210, 94929), (315, 63286), (630, 31643)]