21537040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38459}}^1$

素因数の和:38479

約数の個数: 40

約数和(自身を含む): 57228480

約数和(自身を除く): 35691440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38459, 76918, 153836, 192295, 269213, 307672, 384590, 538426, 615344, 769180, 1076852, 1346065, 1538360, 2153704, 2692130, 3076720, 4307408, 5384260, 10768520, 21537040]

約数ペア:

[(1, 21537040), (2, 10768520), (4, 5384260), (5, 4307408), (7, 3076720), (8, 2692130), (10, 2153704), (14, 1538360), (16, 1346065), (20, 1076852), (28, 769180), (35, 615344), (40, 538426), (56, 384590), (70, 307672), (80, 269213), (112, 192295), (140, 153836), (280, 76918), (560, 38459)]