21119970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{359}}^1$

素因数の和:459

約数の個数: 64

約数和(自身を含む): 53187840

約数和(自身を除く): 32067870

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 53, 74, 106, 111, 159, 185, 222, 265, 318, 359, 370, 530, 555, 718, 795, 1077, 1110, 1590, 1795, 1961, 2154, 3590, 3922, 5385, 5883, 9805, 10770, 11766, 13283, 19027, 19610, 26566, 29415, 38054, 39849, 57081, 58830, 66415, 79698, 95135, 114162, 132830, 190270, 199245, 285405, 398490, 570810, 703999, 1407998, 2111997, 3519995, 4223994, 7039990, 10559985, 21119970]

約数ペア:

[(1, 21119970), (2, 10559985), (3, 7039990), (5, 4223994), (6, 3519995), (10, 2111997), (15, 1407998), (30, 703999), (37, 570810), (53, 398490), (74, 285405), (106, 199245), (111, 190270), (159, 132830), (185, 114162), (222, 95135), (265, 79698), (318, 66415), (359, 58830), (370, 57081), (530, 39849), (555, 38054), (718, 29415), (795, 26566), (1077, 19610), (1110, 19027), (1590, 13283), (1795, 11766), (1961, 10770), (2154, 9805), (3590, 5883), (3922, 5385)]