19708728

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 53508000

約数和(自身を除く): 33799272

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 181, 312, 349, 362, 543, 698, 724, 1047, 1086, 1396, 1448, 2094, 2172, 2353, 2792, 4188, 4344, 4537, 4706, 7059, 8376, 9074, 9412, 13611, 14118, 18148, 18824, 27222, 28236, 36296, 54444, 56472, 63169, 108888, 126338, 189507, 252676, 379014, 505352, 758028, 821197, 1516056, 1642394, 2463591, 3284788, 4927182, 6569576, 9854364, 19708728]

約数ペア:

[(1, 19708728), (2, 9854364), (3, 6569576), (4, 4927182), (6, 3284788), (8, 2463591), (12, 1642394), (13, 1516056), (24, 821197), (26, 758028), (39, 505352), (52, 379014), (78, 252676), (104, 189507), (156, 126338), (181, 108888), (312, 63169), (349, 56472), (362, 54444), (543, 36296), (698, 28236), (724, 27222), (1047, 18824), (1086, 18148), (1396, 14118), (1448, 13611), (2094, 9412), (2172, 9074), (2353, 8376), (2792, 7059), (4188, 4706), (4344, 4537)]