20499332

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 43104768

約数和(自身を除く): 22605436

約数列:

[1, 2, 4, 7, 14, 28, 37, 47, 74, 94, 148, 188, 259, 329, 421, 518, 658, 842, 1036, 1316, 1684, 1739, 2947, 3478, 5894, 6956, 11788, 12173, 15577, 19787, 24346, 31154, 39574, 48692, 62308, 79148, 109039, 138509, 218078, 277018, 436156, 554036, 732119, 1464238, 2928476, 5124833, 10249666, 20499332]

約数ペア:

[(1, 20499332), (2, 10249666), (4, 5124833), (7, 2928476), (14, 1464238), (28, 732119), (37, 554036), (47, 436156), (74, 277018), (94, 218078), (148, 138509), (188, 109039), (259, 79148), (329, 62308), (421, 48692), (518, 39574), (658, 31154), (842, 24346), (1036, 19787), (1316, 15577), (1684, 12173), (1739, 11788), (2947, 6956), (3478, 5894)]