21948496

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:212

約数の個数: 80

約数和(自身を含む): 49282560

約数和(自身を除く): 27334064

約数列:

[1, 2, 4, 8, 16, 17, 19, 31, 34, 38, 62, 68, 76, 124, 136, 137, 152, 248, 272, 274, 304, 323, 496, 527, 548, 589, 646, 1054, 1096, 1178, 1292, 2108, 2192, 2329, 2356, 2584, 2603, 4216, 4247, 4658, 4712, 5168, 5206, 8432, 8494, 9316, 9424, 10013, 10412, 16988, 18632, 20026, 20824, 33976, 37264, 40052, 41648, 44251, 67952, 72199, 80104, 80693, 88502, 144398, 160208, 161386, 177004, 288796, 322772, 354008, 577592, 645544, 708016, 1155184, 1291088, 1371781, 2743562, 5487124, 10974248, 21948496]

約数ペア:

[(1, 21948496), (2, 10974248), (4, 5487124), (8, 2743562), (16, 1371781), (17, 1291088), (19, 1155184), (31, 708016), (34, 645544), (38, 577592), (62, 354008), (68, 322772), (76, 288796), (124, 177004), (136, 161386), (137, 160208), (152, 144398), (248, 88502), (272, 80693), (274, 80104), (304, 72199), (323, 67952), (496, 44251), (527, 41648), (548, 40052), (589, 37264), (646, 33976), (1054, 20824), (1096, 20026), (1178, 18632), (1292, 16988), (2108, 10412), (2192, 10013), (2329, 9424), (2356, 9316), (2584, 8494), (2603, 8432), (4216, 5206), (4247, 5168), (4658, 4712)]