16720970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{4507}}^1$

素因数の和:4574

約数の個数: 32

約数和(自身を含む): 35054208

約数和(自身を除く): 18333238

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 4507, 9014, 22535, 31549, 45070, 63098, 157745, 238871, 315490, 477742, 1194355, 1672097, 2388710, 3344194, 8360485, 16720970]

約数ペア:

[(1, 16720970), (2, 8360485), (5, 3344194), (7, 2388710), (10, 1672097), (14, 1194355), (35, 477742), (53, 315490), (70, 238871), (106, 157745), (265, 63098), (371, 45070), (530, 31549), (742, 22535), (1855, 9014), (3710, 4507)]