21497788130

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{3374849}}^1$

素因数の和:3374883

約数の個数: 48

約数和(自身を含む): 48476345400

約数和(自身を除く): 26978557270

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 3185, 6370, 3374849, 6749698, 16874245, 23623943, 33748490, 43873037, 47247886, 87746074, 118119715, 165367601, 219365185, 236239430, 307111259, 330735202, 438730370, 614222518, 826838005, 1535556295, 1653676010, 2149778813, 3071112590, 4299557626, 10748894065, 21497788130]

約数ペア:

[(1, 21497788130), (2, 10748894065), (5, 4299557626), (7, 3071112590), (10, 2149778813), (13, 1653676010), (14, 1535556295), (26, 826838005), (35, 614222518), (49, 438730370), (65, 330735202), (70, 307111259), (91, 236239430), (98, 219365185), (130, 165367601), (182, 118119715), (245, 87746074), (455, 47247886), (490, 43873037), (637, 33748490), (910, 23623943), (1274, 16874245), (3185, 6749698), (6370, 3374849)]