18637206

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:269

約数の個数: 64

約数和(自身を含む): 44513280

約数和(自身を除く): 25876074

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 79, 82, 123, 137, 158, 237, 246, 274, 287, 411, 474, 553, 574, 822, 861, 959, 1106, 1659, 1722, 1918, 2877, 3239, 3318, 5617, 5754, 6478, 9717, 10823, 11234, 16851, 19434, 21646, 22673, 32469, 33702, 39319, 45346, 64938, 68019, 75761, 78638, 117957, 136038, 151522, 227283, 235914, 443743, 454566, 887486, 1331229, 2662458, 3106201, 6212402, 9318603, 18637206]

約数ペア:

[(1, 18637206), (2, 9318603), (3, 6212402), (6, 3106201), (7, 2662458), (14, 1331229), (21, 887486), (41, 454566), (42, 443743), (79, 235914), (82, 227283), (123, 151522), (137, 136038), (158, 117957), (237, 78638), (246, 75761), (274, 68019), (287, 64938), (411, 45346), (474, 39319), (553, 33702), (574, 32469), (822, 22673), (861, 21646), (959, 19434), (1106, 16851), (1659, 11234), (1722, 10823), (1918, 9717), (2877, 6478), (3239, 5754), (3318, 5617)]