21513602

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:155

約数の個数: 64

約数和(自身を含む): 40497408

約数和(自身を除く): 18983806

約数列:

[1, 2, 11, 17, 22, 23, 34, 41, 46, 61, 82, 122, 187, 253, 374, 391, 451, 506, 671, 697, 782, 902, 943, 1037, 1342, 1394, 1403, 1886, 2074, 2501, 2806, 4301, 5002, 7667, 8602, 10373, 11407, 15334, 15433, 16031, 20746, 22814, 23851, 27511, 30866, 32062, 42517, 47702, 55022, 57523, 85034, 115046, 176341, 262361, 352682, 467687, 524722, 632753, 935374, 977891, 1265506, 1955782, 10756801, 21513602]

約数ペア:

[(1, 21513602), (2, 10756801), (11, 1955782), (17, 1265506), (22, 977891), (23, 935374), (34, 632753), (41, 524722), (46, 467687), (61, 352682), (82, 262361), (122, 176341), (187, 115046), (253, 85034), (374, 57523), (391, 55022), (451, 47702), (506, 42517), (671, 32062), (697, 30866), (782, 27511), (902, 23851), (943, 22814), (1037, 20746), (1342, 16031), (1394, 15433), (1403, 15334), (1886, 11407), (2074, 10373), (2501, 8602), (2806, 7667), (4301, 5002)]