21478366

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{733}}^1$

素因数の和:785

約数の個数: 48

約数和(自身を含む): 42172704

約数和(自身を除く): 20694338

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 49, 91, 98, 161, 182, 299, 322, 598, 637, 733, 1127, 1274, 1466, 2093, 2254, 4186, 5131, 9529, 10262, 14651, 16859, 19058, 29302, 33718, 35917, 66703, 71834, 118013, 133406, 219167, 236026, 438334, 466921, 826091, 933842, 1534169, 1652182, 3068338, 10739183, 21478366]

約数ペア:

[(1, 21478366), (2, 10739183), (7, 3068338), (13, 1652182), (14, 1534169), (23, 933842), (26, 826091), (46, 466921), (49, 438334), (91, 236026), (98, 219167), (161, 133406), (182, 118013), (299, 71834), (322, 66703), (598, 35917), (637, 33718), (733, 29302), (1127, 19058), (1274, 16859), (1466, 14651), (2093, 10262), (2254, 9529), (4186, 5131)]