21000252

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19231}}^1$

素因数の和:19258

約数の個数: 48

約数和(自身を含む): 60311552

約数和(自身を除く): 39311300

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 19231, 38462, 57693, 76924, 115386, 134617, 230772, 250003, 269234, 403851, 500006, 538468, 750009, 807702, 1000012, 1500018, 1615404, 1750021, 3000036, 3500042, 5250063, 7000084, 10500126, 21000252]

約数ペア:

[(1, 21000252), (2, 10500126), (3, 7000084), (4, 5250063), (6, 3500042), (7, 3000036), (12, 1750021), (13, 1615404), (14, 1500018), (21, 1000012), (26, 807702), (28, 750009), (39, 538468), (42, 500006), (52, 403851), (78, 269234), (84, 250003), (91, 230772), (156, 134617), (182, 115386), (273, 76924), (364, 57693), (546, 38462), (1092, 19231)]