19708528

素因数分解:

$2^4\times 7^1\times {\mathrm{149}}^1\times {\mathrm{1181}}^1$

素因数の和:1345

約数の個数: 40

約数和(自身を含む): 43970400

約数和(自身を除く): 24261872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 149, 298, 596, 1043, 1181, 1192, 2086, 2362, 2384, 4172, 4724, 8267, 8344, 9448, 16534, 16688, 18896, 33068, 66136, 132272, 175969, 351938, 703876, 1231783, 1407752, 2463566, 2815504, 4927132, 9854264, 19708528]

約数ペア:

[(1, 19708528), (2, 9854264), (4, 4927132), (7, 2815504), (8, 2463566), (14, 1407752), (16, 1231783), (28, 703876), (56, 351938), (112, 175969), (149, 132272), (298, 66136), (596, 33068), (1043, 18896), (1181, 16688), (1192, 16534), (2086, 9448), (2362, 8344), (2384, 8267), (4172, 4724)]