219618973

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1$

素因数の和:697

約数の個数: 32

約数和(自身を含む): 274268160

約数和(自身を除く): 54649187

約数列:

[1, 7, 23, 31, 79, 161, 217, 553, 557, 713, 1817, 2449, 3899, 4991, 12719, 12811, 17143, 17267, 44003, 56327, 89677, 120869, 308021, 394289, 397141, 1012069, 1364093, 2779987, 7084483, 9548651, 31374139, 219618973]

約数ペア:

[(1, 219618973), (7, 31374139), (23, 9548651), (31, 7084483), (79, 2779987), (161, 1364093), (217, 1012069), (553, 397141), (557, 394289), (713, 308021), (1817, 120869), (2449, 89677), (3899, 56327), (4991, 44003), (12719, 17267), (12811, 17143)]