19946542

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 41679360

約数和(自身を除く): 21732818

約数列:

[1, 2, 7, 11, 14, 17, 19, 22, 34, 38, 77, 119, 133, 154, 187, 209, 238, 266, 323, 374, 401, 418, 646, 802, 1309, 1463, 2261, 2618, 2807, 2926, 3553, 4411, 4522, 5614, 6817, 7106, 7619, 8822, 13634, 15238, 24871, 30877, 47719, 49742, 53333, 61754, 74987, 83809, 95438, 106666, 129523, 149974, 167618, 259046, 524909, 586663, 906661, 1049818, 1173326, 1424753, 1813322, 2849506, 9973271, 19946542]

約数ペア:

[(1, 19946542), (2, 9973271), (7, 2849506), (11, 1813322), (14, 1424753), (17, 1173326), (19, 1049818), (22, 906661), (34, 586663), (38, 524909), (77, 259046), (119, 167618), (133, 149974), (154, 129523), (187, 106666), (209, 95438), (238, 83809), (266, 74987), (323, 61754), (374, 53333), (401, 49742), (418, 47719), (646, 30877), (802, 24871), (1309, 15238), (1463, 13634), (2261, 8822), (2618, 7619), (2807, 7106), (2926, 6817), (3553, 5614), (4411, 4522)]