19939402

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 36460800

約数和(自身を除く): 16521398

約数列:

[1, 2, 7, 14, 17, 34, 119, 199, 238, 398, 421, 842, 1393, 2786, 2947, 3383, 5894, 6766, 7157, 14314, 23681, 47362, 50099, 83779, 100198, 167558, 586453, 1172906, 1424243, 2848486, 9969701, 19939402]

約数ペア:

[(1, 19939402), (2, 9969701), (7, 2848486), (14, 1424243), (17, 1172906), (34, 586453), (119, 167558), (199, 100198), (238, 83779), (398, 50099), (421, 47362), (842, 23681), (1393, 14314), (2786, 7157), (2947, 6766), (3383, 5894)]