21789460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{14149}}^1$

素因数の和:14176

約数の個数: 48

約数和(自身を含む): 57052800

約数和(自身を除く): 35263340

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 14149, 28298, 56596, 70745, 99043, 141490, 155639, 198086, 282980, 311278, 396172, 495215, 622556, 778195, 990430, 1089473, 1556390, 1980860, 2178946, 3112780, 4357892, 5447365, 10894730, 21789460]

約数ペア:

[(1, 21789460), (2, 10894730), (4, 5447365), (5, 4357892), (7, 3112780), (10, 2178946), (11, 1980860), (14, 1556390), (20, 1089473), (22, 990430), (28, 778195), (35, 622556), (44, 495215), (55, 396172), (70, 311278), (77, 282980), (110, 198086), (140, 155639), (154, 141490), (220, 99043), (308, 70745), (385, 56596), (770, 28298), (1540, 14149)]