21895125

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1$

素因数の和:483

約数の個数: 64

約数和(自身を含む): 43929600

約数和(自身を除く): 22034475

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 125, 133, 175, 285, 375, 399, 439, 475, 525, 665, 875, 1317, 1425, 1995, 2195, 2375, 2625, 3073, 3325, 6585, 7125, 8341, 9219, 9975, 10975, 15365, 16625, 25023, 32925, 41705, 46095, 49875, 54875, 58387, 76825, 125115, 164625, 175161, 208525, 230475, 291935, 384125, 625575, 875805, 1042625, 1152375, 1459675, 3127875, 4379025, 7298375, 21895125]

約数ペア:

[(1, 21895125), (3, 7298375), (5, 4379025), (7, 3127875), (15, 1459675), (19, 1152375), (21, 1042625), (25, 875805), (35, 625575), (57, 384125), (75, 291935), (95, 230475), (105, 208525), (125, 175161), (133, 164625), (175, 125115), (285, 76825), (375, 58387), (399, 54875), (439, 49875), (475, 46095), (525, 41705), (665, 32925), (875, 25023), (1317, 16625), (1425, 15365), (1995, 10975), (2195, 9975), (2375, 9219), (2625, 8341), (3073, 7125), (3325, 6585)]