28801201

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 35804160

約数和(自身を除く): 7002959

約数列:

[1, 11, 13, 31, 73, 89, 143, 341, 403, 803, 949, 979, 1157, 2263, 2759, 4433, 6497, 10439, 12727, 24893, 29419, 30349, 35867, 71467, 84461, 201407, 323609, 394537, 929071, 2215477, 2618291, 28801201]

約数ペア:

[(1, 28801201), (11, 2618291), (13, 2215477), (31, 929071), (73, 394537), (89, 323609), (143, 201407), (341, 84461), (403, 71467), (803, 35867), (949, 30349), (979, 29419), (1157, 24893), (2263, 12727), (2759, 10439), (4433, 6497)]