21270090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 53032320

約数和(自身を除く): 31762230

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 59, 61, 118, 122, 177, 183, 197, 295, 305, 354, 366, 394, 590, 591, 610, 885, 915, 985, 1182, 1770, 1830, 1970, 2955, 3599, 5910, 7198, 10797, 11623, 12017, 17995, 21594, 23246, 24034, 34869, 35990, 36051, 53985, 58115, 60085, 69738, 72102, 107970, 116230, 120170, 174345, 180255, 348690, 360510, 709003, 1418006, 2127009, 3545015, 4254018, 7090030, 10635045, 21270090]

約数ペア:

[(1, 21270090), (2, 10635045), (3, 7090030), (5, 4254018), (6, 3545015), (10, 2127009), (15, 1418006), (30, 709003), (59, 360510), (61, 348690), (118, 180255), (122, 174345), (177, 120170), (183, 116230), (197, 107970), (295, 72102), (305, 69738), (354, 60085), (366, 58115), (394, 53985), (590, 36051), (591, 35990), (610, 34869), (885, 24034), (915, 23246), (985, 21594), (1182, 17995), (1770, 12017), (1830, 11623), (1970, 10797), (2955, 7198), (3599, 5910)]