20717298

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{283}}^1$

素因数の和:388

約数の個数: 72

約数和(自身を含む): 53031888

約数和(自身を除く): 32314590

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 83, 98, 126, 147, 166, 249, 283, 294, 441, 498, 566, 581, 747, 849, 882, 1162, 1494, 1698, 1743, 1981, 2547, 3486, 3962, 4067, 5094, 5229, 5943, 8134, 10458, 11886, 12201, 13867, 17829, 23489, 24402, 27734, 35658, 36603, 41601, 46978, 70467, 73206, 83202, 124803, 140934, 164423, 211401, 249606, 328846, 422802, 493269, 986538, 1150961, 1479807, 2301922, 2959614, 3452883, 6905766, 10358649, 20717298]

約数ペア:

[(1, 20717298), (2, 10358649), (3, 6905766), (6, 3452883), (7, 2959614), (9, 2301922), (14, 1479807), (18, 1150961), (21, 986538), (42, 493269), (49, 422802), (63, 328846), (83, 249606), (98, 211401), (126, 164423), (147, 140934), (166, 124803), (249, 83202), (283, 73206), (294, 70467), (441, 46978), (498, 41601), (566, 36603), (581, 35658), (747, 27734), (849, 24402), (882, 23489), (1162, 17829), (1494, 13867), (1698, 12201), (1743, 11886), (1981, 10458), (2547, 8134), (3486, 5943), (3962, 5229), (4067, 5094)]