21455784

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42571}}^1$

素因数の和:42590

約数の個数: 48

約数和(自身を含む): 66412320

約数和(自身を除く): 44956536

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 42571, 85142, 127713, 170284, 255426, 297997, 340568, 383139, 510852, 595994, 766278, 893991, 1021704, 1191988, 1532556, 1787982, 2383976, 2681973, 3065112, 3575964, 5363946, 7151928, 10727892, 21455784]

約数ペア:

[(1, 21455784), (2, 10727892), (3, 7151928), (4, 5363946), (6, 3575964), (7, 3065112), (8, 2681973), (9, 2383976), (12, 1787982), (14, 1532556), (18, 1191988), (21, 1021704), (24, 893991), (28, 766278), (36, 595994), (42, 510852), (56, 383139), (63, 340568), (72, 297997), (84, 255426), (126, 170284), (168, 127713), (252, 85142), (504, 42571)]