18841473

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 32722560

約数和(自身を除く): 13881087

約数列:

[1, 3, 7, 9, 21, 37, 59, 63, 111, 137, 177, 259, 333, 411, 413, 531, 777, 959, 1233, 1239, 2183, 2331, 2877, 3717, 5069, 6549, 8083, 8631, 15207, 15281, 19647, 24249, 35483, 45621, 45843, 56581, 72747, 106449, 137529, 169743, 299071, 319347, 509229, 897213, 2093497, 2691639, 6280491, 18841473]

約数ペア:

[(1, 18841473), (3, 6280491), (7, 2691639), (9, 2093497), (21, 897213), (37, 509229), (59, 319347), (63, 299071), (111, 169743), (137, 137529), (177, 106449), (259, 72747), (333, 56581), (411, 45843), (413, 45621), (531, 35483), (777, 24249), (959, 19647), (1233, 15281), (1239, 15207), (2183, 8631), (2331, 8083), (2877, 6549), (3717, 5069)]