21109400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:405

約数の個数: 96

約数和(自身を含む): 55308960

約数和(自身を除く): 34199560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 25, 26, 40, 46, 50, 52, 65, 92, 100, 104, 115, 130, 184, 200, 230, 260, 299, 325, 353, 460, 520, 575, 598, 650, 706, 920, 1150, 1196, 1300, 1412, 1495, 1765, 2300, 2392, 2600, 2824, 2990, 3530, 4589, 4600, 5980, 7060, 7475, 8119, 8825, 9178, 11960, 14120, 14950, 16238, 17650, 18356, 22945, 29900, 32476, 35300, 36712, 40595, 45890, 59800, 64952, 70600, 81190, 91780, 105547, 114725, 162380, 183560, 202975, 211094, 229450, 324760, 405950, 422188, 458900, 527735, 811900, 844376, 917800, 1055470, 1623800, 2110940, 2638675, 4221880, 5277350, 10554700, 21109400]

約数ペア:

[(1, 21109400), (2, 10554700), (4, 5277350), (5, 4221880), (8, 2638675), (10, 2110940), (13, 1623800), (20, 1055470), (23, 917800), (25, 844376), (26, 811900), (40, 527735), (46, 458900), (50, 422188), (52, 405950), (65, 324760), (92, 229450), (100, 211094), (104, 202975), (115, 183560), (130, 162380), (184, 114725), (200, 105547), (230, 91780), (260, 81190), (299, 70600), (325, 64952), (353, 59800), (460, 45890), (520, 40595), (575, 36712), (598, 35300), (650, 32476), (706, 29900), (920, 22945), (1150, 18356), (1196, 17650), (1300, 16238), (1412, 14950), (1495, 14120), (1765, 11960), (2300, 9178), (2392, 8825), (2600, 8119), (2824, 7475), (2990, 7060), (3530, 5980), (4589, 4600)]