20993504

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:220

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 30716896

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 37, 56, 68, 74, 112, 119, 136, 148, 149, 224, 238, 259, 272, 296, 298, 476, 518, 544, 592, 596, 629, 952, 1036, 1043, 1184, 1192, 1258, 1904, 2072, 2086, 2384, 2516, 2533, 3808, 4144, 4172, 4403, 4768, 5032, 5066, 5513, 8288, 8344, 8806, 10064, 10132, 11026, 16688, 17612, 17731, 20128, 20264, 22052, 33376, 35224, 35462, 38591, 40528, 44104, 70448, 70924, 77182, 81056, 88208, 93721, 140896, 141848, 154364, 176416, 187442, 283696, 308728, 374884, 567392, 617456, 656047, 749768, 1234912, 1312094, 1499536, 2624188, 2999072, 5248376, 10496752, 20993504]

約数ペア:

[(1, 20993504), (2, 10496752), (4, 5248376), (7, 2999072), (8, 2624188), (14, 1499536), (16, 1312094), (17, 1234912), (28, 749768), (32, 656047), (34, 617456), (37, 567392), (56, 374884), (68, 308728), (74, 283696), (112, 187442), (119, 176416), (136, 154364), (148, 141848), (149, 140896), (224, 93721), (238, 88208), (259, 81056), (272, 77182), (296, 70924), (298, 70448), (476, 44104), (518, 40528), (544, 38591), (592, 35462), (596, 35224), (629, 33376), (952, 22052), (1036, 20264), (1043, 20128), (1184, 17731), (1192, 17612), (1258, 16688), (1904, 11026), (2072, 10132), (2086, 10064), (2384, 8806), (2516, 8344), (2533, 8288), (3808, 5513), (4144, 5066), (4172, 5032), (4403, 4768)]