21880875

素因数分解:

$3^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:157

約数の個数: 64

約数和(自身を含む): 39836160

約数和(自身を除く): 17955285

約数列:

[1, 3, 5, 15, 19, 25, 37, 57, 75, 83, 95, 111, 125, 185, 249, 285, 375, 415, 475, 555, 703, 925, 1245, 1425, 1577, 2075, 2109, 2375, 2775, 3071, 3515, 4625, 4731, 6225, 7125, 7885, 9213, 10375, 10545, 13875, 15355, 17575, 23655, 31125, 39425, 46065, 52725, 58349, 76775, 87875, 118275, 175047, 197125, 230325, 263625, 291745, 383875, 591375, 875235, 1151625, 1458725, 4376175, 7293625, 21880875]

約数ペア:

[(1, 21880875), (3, 7293625), (5, 4376175), (15, 1458725), (19, 1151625), (25, 875235), (37, 591375), (57, 383875), (75, 291745), (83, 263625), (95, 230325), (111, 197125), (125, 175047), (185, 118275), (249, 87875), (285, 76775), (375, 58349), (415, 52725), (475, 46065), (555, 39425), (703, 31125), (925, 23655), (1245, 17575), (1425, 15355), (1577, 13875), (2075, 10545), (2109, 10375), (2375, 9213), (2775, 7885), (3071, 7125), (3515, 6225), (4625, 4731)]