18732368

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1129}}^1$

素因数の和:1215

約数の個数: 40

約数和(自身を含む): 39093480

約数和(自身を除く): 20361112

約数列:

[1, 2, 4, 8, 16, 17, 34, 61, 68, 122, 136, 244, 272, 488, 976, 1037, 1129, 2074, 2258, 4148, 4516, 8296, 9032, 16592, 18064, 19193, 38386, 68869, 76772, 137738, 153544, 275476, 307088, 550952, 1101904, 1170773, 2341546, 4683092, 9366184, 18732368]

約数ペア:

[(1, 18732368), (2, 9366184), (4, 4683092), (8, 2341546), (16, 1170773), (17, 1101904), (34, 550952), (61, 307088), (68, 275476), (122, 153544), (136, 137738), (244, 76772), (272, 68869), (488, 38386), (976, 19193), (1037, 18064), (1129, 16592), (2074, 9032), (2258, 8296), (4148, 4516)]