18438308

素因数分解:

$2^2\times 7^3\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 38304000

約数和(自身を除く): 19865692

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 151, 178, 196, 302, 343, 356, 604, 623, 686, 1057, 1246, 1372, 2114, 2492, 4228, 4361, 7399, 8722, 13439, 14798, 17444, 26878, 29596, 30527, 51793, 53756, 61054, 94073, 103586, 122108, 188146, 207172, 376292, 658511, 1317022, 2634044, 4609577, 9219154, 18438308]

約数ペア:

[(1, 18438308), (2, 9219154), (4, 4609577), (7, 2634044), (14, 1317022), (28, 658511), (49, 376292), (89, 207172), (98, 188146), (151, 122108), (178, 103586), (196, 94073), (302, 61054), (343, 53756), (356, 51793), (604, 30527), (623, 29596), (686, 26878), (1057, 17444), (1246, 14798), (1372, 13439), (2114, 8722), (2492, 7399), (4228, 4361)]