18161858

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 33784128

約数和(自身を除く): 15622270

約数列:

[1, 2, 11, 13, 22, 23, 26, 46, 121, 143, 242, 251, 253, 286, 299, 502, 506, 598, 1573, 2761, 2783, 3146, 3263, 3289, 5522, 5566, 5773, 6526, 6578, 11546, 30371, 35893, 36179, 60742, 63503, 71786, 72358, 75049, 127006, 150098, 394823, 698533, 789646, 825539, 1397066, 1651078, 9080929, 18161858]

約数ペア:

[(1, 18161858), (2, 9080929), (11, 1651078), (13, 1397066), (22, 825539), (23, 789646), (26, 698533), (46, 394823), (121, 150098), (143, 127006), (242, 75049), (251, 72358), (253, 71786), (286, 63503), (299, 60742), (502, 36179), (506, 35893), (598, 30371), (1573, 11546), (2761, 6578), (2783, 6526), (3146, 5773), (3263, 5566), (3289, 5522)]