21521304

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42701}}^1$

素因数の和:42720

約数の個数: 48

約数和(自身を含む): 66615120

約数和(自身を除く): 45093816

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, 42701, 85402, 128103, 170804, 256206, 298907, 341608, 384309, 512412, 597814, 768618, 896721, 1024824, 1195628, 1537236, 1793442, 2391256, 2690163, 3074472, 3586884, 5380326, 7173768, 10760652, 21521304]

約数ペア:

[(1, 21521304), (2, 10760652), (3, 7173768), (4, 5380326), (6, 3586884), (7, 3074472), (8, 2690163), (9, 2391256), (12, 1793442), (14, 1537236), (18, 1195628), (21, 1024824), (24, 896721), (28, 768618), (36, 597814), (42, 512412), (56, 384309), (63, 341608), (72, 298907), (84, 256206), (126, 170804), (168, 128103), (252, 85402), (504, 42701)]