21583240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4057}}^1$

素因数の和:4094

約数の個数: 64

約数和(自身を含む): 58435200

約数和(自身を除く): 36851960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 4057, 5320, 8114, 16228, 20285, 28399, 32456, 40570, 56798, 77083, 81140, 113596, 141995, 154166, 162280, 227192, 283990, 308332, 385415, 539581, 567980, 616664, 770830, 1079162, 1135960, 1541660, 2158324, 2697905, 3083320, 4316648, 5395810, 10791620, 21583240]

約数ペア:

[(1, 21583240), (2, 10791620), (4, 5395810), (5, 4316648), (7, 3083320), (8, 2697905), (10, 2158324), (14, 1541660), (19, 1135960), (20, 1079162), (28, 770830), (35, 616664), (38, 567980), (40, 539581), (56, 385415), (70, 308332), (76, 283990), (95, 227192), (133, 162280), (140, 154166), (152, 141995), (190, 113596), (266, 81140), (280, 77083), (380, 56798), (532, 40570), (665, 32456), (760, 28399), (1064, 20285), (1330, 16228), (2660, 8114), (4057, 5320)]