18643408

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8761}}^1$

素因数の和:8795

約数の個数: 40

約数和(自身を含む): 43459520

約数和(自身を除く): 24816112

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 8761, 17522, 35044, 61327, 70088, 122654, 140176, 166459, 245308, 332918, 490616, 665836, 981232, 1165213, 1331672, 2330426, 2663344, 4660852, 9321704, 18643408]

約数ペア:

[(1, 18643408), (2, 9321704), (4, 4660852), (7, 2663344), (8, 2330426), (14, 1331672), (16, 1165213), (19, 981232), (28, 665836), (38, 490616), (56, 332918), (76, 245308), (112, 166459), (133, 140176), (152, 122654), (266, 70088), (304, 61327), (532, 35044), (1064, 17522), (2128, 8761)]