28215915

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2953}}^1$

素因数の和:2988

約数の個数: 48

約数和(自身を含む): 56575008

約数和(自身を除く): 28359093

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 455, 637, 735, 1365, 1911, 2953, 3185, 8859, 9555, 14765, 20671, 38389, 44295, 62013, 103355, 115167, 144697, 191945, 268723, 310065, 434091, 575835, 723485, 806169, 1343615, 1881061, 2170455, 4030845, 5643183, 9405305, 28215915]

約数ペア:

[(1, 28215915), (3, 9405305), (5, 5643183), (7, 4030845), (13, 2170455), (15, 1881061), (21, 1343615), (35, 806169), (39, 723485), (49, 575835), (65, 434091), (91, 310065), (105, 268723), (147, 191945), (195, 144697), (245, 115167), (273, 103355), (455, 62013), (637, 44295), (735, 38389), (1365, 20671), (1911, 14765), (2953, 9555), (3185, 8859)]