21216650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4663}}^1$

素因数の和:4695

約数の個数: 48

約数和(自身を含む): 48580224

約数和(自身を除く): 27363574

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 455, 650, 910, 2275, 4550, 4663, 9326, 23315, 32641, 46630, 60619, 65282, 116575, 121238, 163205, 233150, 303095, 326410, 424333, 606190, 816025, 848666, 1515475, 1632050, 2121665, 3030950, 4243330, 10608325, 21216650]

約数ペア:

[(1, 21216650), (2, 10608325), (5, 4243330), (7, 3030950), (10, 2121665), (13, 1632050), (14, 1515475), (25, 848666), (26, 816025), (35, 606190), (50, 424333), (65, 326410), (70, 303095), (91, 233150), (130, 163205), (175, 121238), (182, 116575), (325, 65282), (350, 60619), (455, 46630), (650, 32641), (910, 23315), (2275, 9326), (4550, 4663)]