21891954

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{30661}}^1$

素因数の和:30690

約数の個数: 32

約数和(自身を含む): 52983936

約数和(自身を除く): 31091982

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 102, 119, 238, 357, 714, 30661, 61322, 91983, 183966, 214627, 429254, 521237, 643881, 1042474, 1287762, 1563711, 3127422, 3648659, 7297318, 10945977, 21891954]

約数ペア:

[(1, 21891954), (2, 10945977), (3, 7297318), (6, 3648659), (7, 3127422), (14, 1563711), (17, 1287762), (21, 1042474), (34, 643881), (42, 521237), (51, 429254), (102, 214627), (119, 183966), (238, 91983), (357, 61322), (714, 30661)]