19131516

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 50791104

約数和(自身を除く): 31659588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 53, 74, 106, 111, 148, 159, 212, 222, 271, 318, 333, 444, 477, 542, 636, 666, 813, 954, 1084, 1332, 1626, 1908, 1961, 2439, 3252, 3922, 4878, 5883, 7844, 9756, 10027, 11766, 14363, 17649, 20054, 23532, 28726, 30081, 35298, 40108, 43089, 57452, 60162, 70596, 86178, 90243, 120324, 129267, 172356, 180486, 258534, 360972, 517068, 531431, 1062862, 1594293, 2125724, 3188586, 4782879, 6377172, 9565758, 19131516]

約数ペア:

[(1, 19131516), (2, 9565758), (3, 6377172), (4, 4782879), (6, 3188586), (9, 2125724), (12, 1594293), (18, 1062862), (36, 531431), (37, 517068), (53, 360972), (74, 258534), (106, 180486), (111, 172356), (148, 129267), (159, 120324), (212, 90243), (222, 86178), (271, 70596), (318, 60162), (333, 57452), (444, 43089), (477, 40108), (542, 35298), (636, 30081), (666, 28726), (813, 23532), (954, 20054), (1084, 17649), (1332, 14363), (1626, 11766), (1908, 10027), (1961, 9756), (2439, 7844), (3252, 5883), (3922, 4878)]