21902188

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:175

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 30352532

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 47, 68, 77, 89, 94, 119, 154, 178, 187, 188, 238, 308, 329, 356, 374, 476, 517, 623, 658, 748, 799, 979, 1034, 1246, 1309, 1316, 1513, 1598, 1958, 2068, 2492, 2618, 3026, 3196, 3619, 3916, 4183, 5236, 5593, 6052, 6853, 7238, 8366, 8789, 10591, 11186, 13706, 14476, 16643, 16732, 17578, 21182, 22372, 27412, 29281, 33286, 35156, 42364, 46013, 58562, 61523, 66572, 71111, 92026, 116501, 117124, 123046, 142222, 184052, 233002, 246092, 284444, 322091, 466004, 497777, 644182, 782221, 995554, 1288364, 1564442, 1991108, 3128884, 5475547, 10951094, 21902188]

約数ペア:

[(1, 21902188), (2, 10951094), (4, 5475547), (7, 3128884), (11, 1991108), (14, 1564442), (17, 1288364), (22, 995554), (28, 782221), (34, 644182), (44, 497777), (47, 466004), (68, 322091), (77, 284444), (89, 246092), (94, 233002), (119, 184052), (154, 142222), (178, 123046), (187, 117124), (188, 116501), (238, 92026), (308, 71111), (329, 66572), (356, 61523), (374, 58562), (476, 46013), (517, 42364), (623, 35156), (658, 33286), (748, 29281), (799, 27412), (979, 22372), (1034, 21182), (1246, 17578), (1309, 16732), (1316, 16643), (1513, 14476), (1598, 13706), (1958, 11186), (2068, 10591), (2492, 8789), (2618, 8366), (3026, 7238), (3196, 6853), (3619, 6052), (3916, 5593), (4183, 5236)]