21917930

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4159}}^1$

素因数の和:4214

約数の個数: 32

約数和(自身を含む): 43130880

約数和(自身を除く): 21212950

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 155, 170, 310, 527, 1054, 2635, 4159, 5270, 8318, 20795, 41590, 70703, 128929, 141406, 257858, 353515, 644645, 707030, 1289290, 2191793, 4383586, 10958965, 21917930]

約数ペア:

[(1, 21917930), (2, 10958965), (5, 4383586), (10, 2191793), (17, 1289290), (31, 707030), (34, 644645), (62, 353515), (85, 257858), (155, 141406), (170, 128929), (310, 70703), (527, 41590), (1054, 20795), (2635, 8318), (4159, 5270)]