19131618

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{3257}}^1$

素因数の和:3362

約数の個数: 32

約数和(自身を含む): 42223680

約数和(自身を除く): 23092062

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 89, 178, 267, 534, 979, 1958, 2937, 3257, 5874, 6514, 9771, 19542, 35827, 71654, 107481, 214962, 289873, 579746, 869619, 1739238, 3188603, 6377206, 9565809, 19131618]

約数ペア:

[(1, 19131618), (2, 9565809), (3, 6377206), (6, 3188603), (11, 1739238), (22, 869619), (33, 579746), (66, 289873), (89, 214962), (178, 107481), (267, 71654), (534, 35827), (979, 19542), (1958, 9771), (2937, 6514), (3257, 5874)]