28221435

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 55272672

約数和(自身を除く): 27051237

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 71, 73, 99, 121, 165, 213, 219, 355, 363, 365, 495, 605, 639, 657, 781, 803, 1065, 1089, 1095, 1815, 2343, 2409, 3195, 3285, 3905, 4015, 5183, 5445, 7029, 7227, 8591, 8833, 11715, 12045, 15549, 25773, 25915, 26499, 35145, 36135, 42955, 44165, 46647, 57013, 77319, 77745, 79497, 128865, 132495, 171039, 233235, 285065, 386595, 397485, 513117, 627143, 855195, 1881429, 2565585, 3135715, 5644287, 9407145, 28221435]

約数ペア:

[(1, 28221435), (3, 9407145), (5, 5644287), (9, 3135715), (11, 2565585), (15, 1881429), (33, 855195), (45, 627143), (55, 513117), (71, 397485), (73, 386595), (99, 285065), (121, 233235), (165, 171039), (213, 132495), (219, 128865), (355, 79497), (363, 77745), (365, 77319), (495, 57013), (605, 46647), (639, 44165), (657, 42955), (781, 36135), (803, 35145), (1065, 26499), (1089, 25915), (1095, 25773), (1815, 15549), (2343, 12045), (2409, 11715), (3195, 8833), (3285, 8591), (3905, 7227), (4015, 7029), (5183, 5445)]