20572818

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6899}}^1$

素因数の和:6982

約数の個数: 32

約数和(自身を含む): 47692800

約数和(自身を除く): 27119982

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 71, 142, 213, 426, 497, 994, 1491, 2982, 6899, 13798, 20697, 41394, 48293, 96586, 144879, 289758, 489829, 979658, 1469487, 2938974, 3428803, 6857606, 10286409, 20572818]

約数ペア:

[(1, 20572818), (2, 10286409), (3, 6857606), (6, 3428803), (7, 2938974), (14, 1469487), (21, 979658), (42, 489829), (71, 289758), (142, 144879), (213, 96586), (426, 48293), (497, 41394), (994, 20697), (1491, 13798), (2982, 6899)]