21828495

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 40771584

約数和(自身を除く): 18943089

約数列:

[1, 3, 5, 13, 15, 23, 31, 39, 65, 69, 93, 115, 155, 157, 195, 299, 345, 403, 465, 471, 713, 785, 897, 1209, 1495, 2015, 2041, 2139, 2355, 3565, 3611, 4485, 4867, 6045, 6123, 9269, 10205, 10695, 10833, 14601, 18055, 24335, 27807, 30615, 46345, 46943, 54165, 63271, 73005, 111941, 139035, 140829, 189813, 234715, 316355, 335823, 559705, 704145, 949065, 1455233, 1679115, 4365699, 7276165, 21828495]

約数ペア:

[(1, 21828495), (3, 7276165), (5, 4365699), (13, 1679115), (15, 1455233), (23, 949065), (31, 704145), (39, 559705), (65, 335823), (69, 316355), (93, 234715), (115, 189813), (155, 140829), (157, 139035), (195, 111941), (299, 73005), (345, 63271), (403, 54165), (465, 46943), (471, 46345), (713, 30615), (785, 27807), (897, 24335), (1209, 18055), (1495, 14601), (2015, 10833), (2041, 10695), (2139, 10205), (2355, 9269), (3565, 6123), (3611, 6045), (4485, 4867)]