18320351

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 23639040

約数和(自身を除く): 5318689

約数列:

[1, 7, 19, 23, 53, 113, 133, 161, 371, 437, 791, 1007, 1219, 2147, 2599, 3059, 5989, 7049, 8533, 15029, 18193, 23161, 41923, 49381, 113791, 137747, 162127, 345667, 796537, 964229, 2617193, 18320351]

約数ペア:

[(1, 18320351), (7, 2617193), (19, 964229), (23, 796537), (53, 345667), (113, 162127), (133, 137747), (161, 113791), (371, 49381), (437, 41923), (791, 23161), (1007, 18193), (1219, 15029), (2147, 8533), (2599, 7049), (3059, 5989)]