30721518

素因数分解:

$2^1\times 3^6\times {\mathrm{19}}^1\times {\mathrm{1109}}^1$

素因数の和:1148

約数の個数: 56

約数和(自身を含む): 72793800

約数和(自身を除く): 42072282

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 81, 114, 162, 171, 243, 342, 486, 513, 729, 1026, 1109, 1458, 1539, 2218, 3078, 3327, 4617, 6654, 9234, 9981, 13851, 19962, 21071, 27702, 29943, 42142, 59886, 63213, 89829, 126426, 179658, 189639, 269487, 379278, 538974, 568917, 808461, 1137834, 1616922, 1706751, 3413502, 5120253, 10240506, 15360759, 30721518]

約数ペア:

[(1, 30721518), (2, 15360759), (3, 10240506), (6, 5120253), (9, 3413502), (18, 1706751), (19, 1616922), (27, 1137834), (38, 808461), (54, 568917), (57, 538974), (81, 379278), (114, 269487), (162, 189639), (171, 179658), (243, 126426), (342, 89829), (486, 63213), (513, 59886), (729, 42142), (1026, 29943), (1109, 27702), (1458, 21071), (1539, 19962), (2218, 13851), (3078, 9981), (3327, 9234), (4617, 6654)]