19918695

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 32970240

約数和(自身を除く): 13051545

約数列:

[1, 3, 5, 15, 59, 71, 177, 213, 295, 317, 355, 885, 951, 1065, 1585, 4189, 4755, 12567, 18703, 20945, 22507, 56109, 62835, 67521, 93515, 112535, 280545, 337605, 1327913, 3983739, 6639565, 19918695]

約数ペア:

[(1, 19918695), (3, 6639565), (5, 3983739), (15, 1327913), (59, 337605), (71, 280545), (177, 112535), (213, 93515), (295, 67521), (317, 62835), (355, 56109), (885, 22507), (951, 20945), (1065, 18703), (1585, 12567), (4189, 4755)]