21450702980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6661709}}^1$

素因数の和:6661748

約数の個数: 48

約数和(自身を含む): 53720029440

約数和(自身を除く): 32269326460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6661709, 13323418, 26646836, 33308545, 46631963, 66617090, 93263926, 133234180, 153219307, 186527852, 233159815, 306438614, 466319630, 612877228, 766096535, 932639260, 1072535149, 1532193070, 2145070298, 3064386140, 4290140596, 5362675745, 10725351490, 21450702980]

約数ペア:

[(1, 21450702980), (2, 10725351490), (4, 5362675745), (5, 4290140596), (7, 3064386140), (10, 2145070298), (14, 1532193070), (20, 1072535149), (23, 932639260), (28, 766096535), (35, 612877228), (46, 466319630), (70, 306438614), (92, 233159815), (115, 186527852), (140, 153219307), (161, 133234180), (230, 93263926), (322, 66617090), (460, 46631963), (644, 33308545), (805, 26646836), (1610, 13323418), (3220, 6661709)]