21293900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{6869}}^1$

素因数の和:6914

約数の個数: 36

約数和(自身を含む): 47705280

約数和(自身を除く): 26411380

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 6869, 13738, 27476, 34345, 68690, 137380, 171725, 212939, 343450, 425878, 686900, 851756, 1064695, 2129390, 4258780, 5323475, 10646950, 21293900]

約数ペア:

[(1, 21293900), (2, 10646950), (4, 5323475), (5, 4258780), (10, 2129390), (20, 1064695), (25, 851756), (31, 686900), (50, 425878), (62, 343450), (100, 212939), (124, 171725), (155, 137380), (310, 68690), (620, 34345), (775, 27476), (1550, 13738), (3100, 6869)]