21191282

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{331}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 38724480

約数和(自身を除く): 17533198

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 269, 331, 538, 662, 1883, 2317, 3766, 4573, 4634, 5627, 9146, 11254, 32011, 39389, 64022, 78778, 89039, 178078, 623273, 1246546, 1513663, 3027326, 10595641, 21191282]

約数ペア:

[(1, 21191282), (2, 10595641), (7, 3027326), (14, 1513663), (17, 1246546), (34, 623273), (119, 178078), (238, 89039), (269, 78778), (331, 64022), (538, 39389), (662, 32011), (1883, 11254), (2317, 9146), (3766, 5627), (4573, 4634)]