21103005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{151}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 42725376

約数和(自身を除く): 21622371

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 121, 151, 165, 231, 363, 385, 453, 605, 755, 847, 1057, 1155, 1331, 1661, 1815, 2265, 2541, 3171, 3993, 4235, 4983, 5285, 6655, 8305, 9317, 11627, 12705, 15855, 18271, 19965, 24915, 27951, 34881, 46585, 54813, 58135, 91355, 127897, 139755, 174405, 200981, 274065, 383691, 602943, 639485, 1004905, 1406867, 1918455, 3014715, 4220601, 7034335, 21103005]

約数ペア:

[(1, 21103005), (3, 7034335), (5, 4220601), (7, 3014715), (11, 1918455), (15, 1406867), (21, 1004905), (33, 639485), (35, 602943), (55, 383691), (77, 274065), (105, 200981), (121, 174405), (151, 139755), (165, 127897), (231, 91355), (363, 58135), (385, 54813), (453, 46585), (605, 34881), (755, 27951), (847, 24915), (1057, 19965), (1155, 18271), (1331, 15855), (1661, 12705), (1815, 11627), (2265, 9317), (2541, 8305), (3171, 6655), (3993, 5285), (4235, 4983)]