21386976

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17137}}^1$

素因数の和:17163

約数の個数: 48

約数和(自身を含む): 60462864

約数和(自身を除く): 39075888

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 17137, 34274, 51411, 68548, 102822, 137096, 205644, 222781, 274192, 411288, 445562, 548384, 668343, 822576, 891124, 1336686, 1645152, 1782248, 2673372, 3564496, 5346744, 7128992, 10693488, 21386976]

約数ペア:

[(1, 21386976), (2, 10693488), (3, 7128992), (4, 5346744), (6, 3564496), (8, 2673372), (12, 1782248), (13, 1645152), (16, 1336686), (24, 891124), (26, 822576), (32, 668343), (39, 548384), (48, 445562), (52, 411288), (78, 274192), (96, 222781), (104, 205644), (156, 137096), (208, 102822), (312, 68548), (416, 51411), (624, 34274), (1248, 17137)]