18660876

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:171

約数の個数: 96

約数和(自身を含む): 49871808

約数和(自身を除く): 31210932

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 53, 61, 74, 78, 106, 111, 122, 148, 156, 159, 183, 212, 222, 244, 318, 366, 444, 481, 636, 689, 732, 793, 962, 1378, 1443, 1586, 1924, 1961, 2067, 2257, 2379, 2756, 2886, 3172, 3233, 3922, 4134, 4514, 4758, 5772, 5883, 6466, 6771, 7844, 8268, 9028, 9516, 9699, 11766, 12932, 13542, 19398, 23532, 25493, 27084, 29341, 38796, 42029, 50986, 58682, 76479, 84058, 88023, 101972, 117364, 119621, 126087, 152958, 168116, 176046, 239242, 252174, 305916, 352092, 358863, 478484, 504348, 717726, 1435452, 1555073, 3110146, 4665219, 6220292, 9330438, 18660876]

約数ペア:

[(1, 18660876), (2, 9330438), (3, 6220292), (4, 4665219), (6, 3110146), (12, 1555073), (13, 1435452), (26, 717726), (37, 504348), (39, 478484), (52, 358863), (53, 352092), (61, 305916), (74, 252174), (78, 239242), (106, 176046), (111, 168116), (122, 152958), (148, 126087), (156, 119621), (159, 117364), (183, 101972), (212, 88023), (222, 84058), (244, 76479), (318, 58682), (366, 50986), (444, 42029), (481, 38796), (636, 29341), (689, 27084), (732, 25493), (793, 23532), (962, 19398), (1378, 13542), (1443, 12932), (1586, 11766), (1924, 9699), (1961, 9516), (2067, 9028), (2257, 8268), (2379, 7844), (2756, 6771), (2886, 6466), (3172, 5883), (3233, 5772), (3922, 4758), (4134, 4514)]