21573748

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{743}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 46497024

約数和(自身を除く): 24923276

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 61, 68, 119, 122, 238, 244, 427, 476, 743, 854, 1037, 1486, 1708, 2074, 2972, 4148, 5201, 7259, 10402, 12631, 14518, 20804, 25262, 29036, 45323, 50524, 88417, 90646, 176834, 181292, 317261, 353668, 634522, 770491, 1269044, 1540982, 3081964, 5393437, 10786874, 21573748]

約数ペア:

[(1, 21573748), (2, 10786874), (4, 5393437), (7, 3081964), (14, 1540982), (17, 1269044), (28, 770491), (34, 634522), (61, 353668), (68, 317261), (119, 181292), (122, 176834), (238, 90646), (244, 88417), (427, 50524), (476, 45323), (743, 29036), (854, 25262), (1037, 20804), (1486, 14518), (1708, 12631), (2074, 10402), (2972, 7259), (4148, 5201)]