19222203

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 35546112

約数和(自身を除く): 16323909

約数列:

[1, 3, 7, 11, 13, 21, 33, 37, 39, 77, 91, 111, 143, 173, 231, 259, 273, 407, 429, 481, 519, 777, 1001, 1211, 1221, 1443, 1903, 2249, 2849, 3003, 3367, 3633, 5291, 5709, 6401, 6747, 8547, 10101, 13321, 15743, 15873, 19203, 24739, 37037, 39963, 44807, 47229, 70411, 74217, 83213, 111111, 134421, 173173, 211233, 249639, 492877, 519519, 582491, 915343, 1478631, 1747473, 2746029, 6407401, 19222203]

約数ペア:

[(1, 19222203), (3, 6407401), (7, 2746029), (11, 1747473), (13, 1478631), (21, 915343), (33, 582491), (37, 519519), (39, 492877), (77, 249639), (91, 211233), (111, 173173), (143, 134421), (173, 111111), (231, 83213), (259, 74217), (273, 70411), (407, 47229), (429, 44807), (481, 39963), (519, 37037), (777, 24739), (1001, 19203), (1211, 15873), (1221, 15743), (1443, 13321), (1903, 10101), (2249, 8547), (2849, 6747), (3003, 6401), (3367, 5709), (3633, 5291)]