21689700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{367}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 63245952

約数和(自身を除く): 41556252

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 197, 300, 367, 394, 591, 734, 788, 985, 1101, 1182, 1468, 1835, 1970, 2202, 2364, 2955, 3670, 3940, 4404, 4925, 5505, 5910, 7340, 9175, 9850, 11010, 11820, 14775, 18350, 19700, 22020, 27525, 29550, 36700, 55050, 59100, 72299, 110100, 144598, 216897, 289196, 361495, 433794, 722990, 867588, 1084485, 1445980, 1807475, 2168970, 3614950, 4337940, 5422425, 7229900, 10844850, 21689700]

約数ペア:

[(1, 21689700), (2, 10844850), (3, 7229900), (4, 5422425), (5, 4337940), (6, 3614950), (10, 2168970), (12, 1807475), (15, 1445980), (20, 1084485), (25, 867588), (30, 722990), (50, 433794), (60, 361495), (75, 289196), (100, 216897), (150, 144598), (197, 110100), (300, 72299), (367, 59100), (394, 55050), (591, 36700), (734, 29550), (788, 27525), (985, 22020), (1101, 19700), (1182, 18350), (1468, 14775), (1835, 11820), (1970, 11010), (2202, 9850), (2364, 9175), (2955, 7340), (3670, 5910), (3940, 5505), (4404, 4925)]