21955465

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 31610880

約数和(自身を除く): 9655415

約数列:

[1, 5, 7, 29, 35, 97, 145, 203, 223, 485, 679, 1015, 1115, 1561, 2813, 3395, 6467, 7805, 14065, 19691, 21631, 32335, 45269, 98455, 108155, 151417, 226345, 627299, 757085, 3136495, 4391093, 21955465]

約数ペア:

[(1, 21955465), (5, 4391093), (7, 3136495), (29, 757085), (35, 627299), (97, 226345), (145, 151417), (203, 108155), (223, 98455), (485, 45269), (679, 32335), (1015, 21631), (1115, 19691), (1561, 14065), (2813, 7805), (3395, 6467)]