21656472

素因数分解:

$2^3\times 3^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 56263680

約数和(自身を除く): 34607208

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 47, 73, 94, 141, 146, 188, 219, 263, 282, 292, 376, 438, 526, 564, 584, 789, 876, 1052, 1128, 1578, 1752, 2104, 3156, 3431, 6312, 6862, 10293, 12361, 13724, 19199, 20586, 24722, 27448, 37083, 38398, 41172, 49444, 57597, 74166, 76796, 82344, 98888, 115194, 148332, 153592, 230388, 296664, 460776, 902353, 1804706, 2707059, 3609412, 5414118, 7218824, 10828236, 21656472]

約数ペア:

[(1, 21656472), (2, 10828236), (3, 7218824), (4, 5414118), (6, 3609412), (8, 2707059), (12, 1804706), (24, 902353), (47, 460776), (73, 296664), (94, 230388), (141, 153592), (146, 148332), (188, 115194), (219, 98888), (263, 82344), (282, 76796), (292, 74166), (376, 57597), (438, 49444), (526, 41172), (564, 38398), (584, 37083), (789, 27448), (876, 24722), (1052, 20586), (1128, 19199), (1578, 13724), (1752, 12361), (2104, 10293), (3156, 6862), (3431, 6312)]