18502276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 37428160

約数和(自身を除く): 18925884

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 61, 76, 122, 244, 247, 307, 494, 614, 793, 988, 1159, 1228, 1586, 2318, 3172, 3991, 4636, 5833, 7982, 11666, 15067, 15964, 18727, 23332, 30134, 37454, 60268, 74908, 75829, 151658, 243451, 303316, 355813, 486902, 711626, 973804, 1423252, 4625569, 9251138, 18502276]

約数ペア:

[(1, 18502276), (2, 9251138), (4, 4625569), (13, 1423252), (19, 973804), (26, 711626), (38, 486902), (52, 355813), (61, 303316), (76, 243451), (122, 151658), (244, 75829), (247, 74908), (307, 60268), (494, 37454), (614, 30134), (793, 23332), (988, 18727), (1159, 15964), (1228, 15067), (1586, 11666), (2318, 7982), (3172, 5833), (3991, 4636)]