21237510

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4397}}^1$

素因数の和:4437

約数の個数: 64

約数和(自身を含む): 60797952

約数和(自身を除く): 39560442

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 69, 70, 105, 115, 138, 161, 210, 230, 322, 345, 483, 690, 805, 966, 1610, 2415, 4397, 4830, 8794, 13191, 21985, 26382, 30779, 43970, 61558, 65955, 92337, 101131, 131910, 153895, 184674, 202262, 303393, 307790, 461685, 505655, 606786, 707917, 923370, 1011310, 1415834, 1516965, 2123751, 3033930, 3539585, 4247502, 7079170, 10618755, 21237510]

約数ペア:

[(1, 21237510), (2, 10618755), (3, 7079170), (5, 4247502), (6, 3539585), (7, 3033930), (10, 2123751), (14, 1516965), (15, 1415834), (21, 1011310), (23, 923370), (30, 707917), (35, 606786), (42, 505655), (46, 461685), (69, 307790), (70, 303393), (105, 202262), (115, 184674), (138, 153895), (161, 131910), (210, 101131), (230, 92337), (322, 65955), (345, 61558), (483, 43970), (690, 30779), (805, 26382), (966, 21985), (1610, 13191), (2415, 8794), (4397, 4830)]