21770910

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11519}}^1$

素因数の和:11542

約数の個数: 64

約数和(自身を含む): 66355200

約数和(自身を除く): 44584290

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11519, 23038, 34557, 57595, 69114, 80633, 103671, 115190, 161266, 172785, 207342, 241899, 311013, 345570, 403165, 483798, 518355, 622026, 725697, 806330, 1036710, 1209495, 1451394, 1555065, 2177091, 2418990, 3110130, 3628485, 4354182, 7256970, 10885455, 21770910]

約数ペア:

[(1, 21770910), (2, 10885455), (3, 7256970), (5, 4354182), (6, 3628485), (7, 3110130), (9, 2418990), (10, 2177091), (14, 1555065), (15, 1451394), (18, 1209495), (21, 1036710), (27, 806330), (30, 725697), (35, 622026), (42, 518355), (45, 483798), (54, 403165), (63, 345570), (70, 311013), (90, 241899), (105, 207342), (126, 172785), (135, 161266), (189, 115190), (210, 103671), (270, 80633), (315, 69114), (378, 57595), (630, 34557), (945, 23038), (1890, 11519)]