20871384

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{18503}}^1$

素因数の和:18559

約数の個数: 32

約数和(自身を含む): 53291520

約数和(自身を除く): 32420136

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 94, 141, 188, 282, 376, 564, 1128, 18503, 37006, 55509, 74012, 111018, 148024, 222036, 444072, 869641, 1739282, 2608923, 3478564, 5217846, 6957128, 10435692, 20871384]

約数ペア:

[(1, 20871384), (2, 10435692), (3, 6957128), (4, 5217846), (6, 3478564), (8, 2608923), (12, 1739282), (24, 869641), (47, 444072), (94, 222036), (141, 148024), (188, 111018), (282, 74012), (376, 55509), (564, 37006), (1128, 18503)]