19638808

素因数分解:

$2^3\times 7^3\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:465

約数の個数: 64

約数和(自身を含む): 45576000

約数和(自身を除く): 25937192

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 343, 392, 421, 476, 686, 833, 842, 952, 1372, 1666, 1684, 2744, 2947, 3332, 3368, 5831, 5894, 6664, 7157, 11662, 11788, 14314, 20629, 23324, 23576, 28628, 41258, 46648, 50099, 57256, 82516, 100198, 144403, 165032, 200396, 288806, 350693, 400792, 577612, 701386, 1155224, 1402772, 2454851, 2805544, 4909702, 9819404, 19638808]

約数ペア:

[(1, 19638808), (2, 9819404), (4, 4909702), (7, 2805544), (8, 2454851), (14, 1402772), (17, 1155224), (28, 701386), (34, 577612), (49, 400792), (56, 350693), (68, 288806), (98, 200396), (119, 165032), (136, 144403), (196, 100198), (238, 82516), (343, 57256), (392, 50099), (421, 46648), (476, 41258), (686, 28628), (833, 23576), (842, 23324), (952, 20629), (1372, 14314), (1666, 11788), (1684, 11662), (2744, 7157), (2947, 6664), (3332, 5894), (3368, 5831)]