28177461

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 47139456

約数和(自身を除く): 18961995

約数列:

[1, 3, 9, 13, 23, 37, 39, 69, 111, 117, 207, 283, 299, 333, 481, 849, 851, 897, 1443, 2547, 2553, 2691, 3679, 4329, 6509, 7659, 10471, 11037, 11063, 19527, 31413, 33111, 33189, 58581, 84617, 94239, 99567, 136123, 240833, 253851, 408369, 722499, 761553, 1225107, 2167497, 3130829, 9392487, 28177461]

約数ペア:

[(1, 28177461), (3, 9392487), (9, 3130829), (13, 2167497), (23, 1225107), (37, 761553), (39, 722499), (69, 408369), (111, 253851), (117, 240833), (207, 136123), (283, 99567), (299, 94239), (333, 84617), (481, 58581), (849, 33189), (851, 33111), (897, 31413), (1443, 19527), (2547, 11063), (2553, 11037), (2691, 10471), (3679, 7659), (4329, 6509)]