21371154

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{463}}^1$

素因数の和:639

約数の個数: 48

約数和(自身を含む): 50145408

約数和(自身を除く): 28774254

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 157, 294, 314, 463, 471, 926, 942, 1099, 1389, 2198, 2778, 3241, 3297, 6482, 6594, 7693, 9723, 15386, 19446, 22687, 23079, 45374, 46158, 68061, 72691, 136122, 145382, 218073, 436146, 508837, 1017674, 1526511, 3053022, 3561859, 7123718, 10685577, 21371154]

約数ペア:

[(1, 21371154), (2, 10685577), (3, 7123718), (6, 3561859), (7, 3053022), (14, 1526511), (21, 1017674), (42, 508837), (49, 436146), (98, 218073), (147, 145382), (157, 136122), (294, 72691), (314, 68061), (463, 46158), (471, 45374), (926, 23079), (942, 22687), (1099, 19446), (1389, 15386), (2198, 9723), (2778, 7693), (3241, 6594), (3297, 6482)]