21724335

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 19747665

約数列:

[1, 3, 5, 9, 15, 27, 29, 31, 45, 87, 93, 135, 145, 155, 179, 261, 279, 435, 465, 537, 783, 837, 895, 899, 1305, 1395, 1611, 2685, 2697, 3915, 4185, 4495, 4833, 5191, 5549, 8055, 8091, 13485, 15573, 16647, 24165, 24273, 25955, 27745, 40455, 46719, 49941, 77865, 83235, 121365, 140157, 149823, 160921, 233595, 249705, 482763, 700785, 749115, 804605, 1448289, 2413815, 4344867, 7241445, 21724335]

約数ペア:

[(1, 21724335), (3, 7241445), (5, 4344867), (9, 2413815), (15, 1448289), (27, 804605), (29, 749115), (31, 700785), (45, 482763), (87, 249705), (93, 233595), (135, 160921), (145, 149823), (155, 140157), (179, 121365), (261, 83235), (279, 77865), (435, 49941), (465, 46719), (537, 40455), (783, 27745), (837, 25955), (895, 24273), (899, 24165), (1305, 16647), (1395, 15573), (1611, 13485), (2685, 8091), (2697, 8055), (3915, 5549), (4185, 5191), (4495, 4833)]