21495546070

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{983}}^1\times {\mathrm{1621}}^1$

素因数の和:2701

約数の個数: 64

約数和(自身を含む): 41369564160

約数和(自身を除く): 19874018090

約数列:

[1, 2, 5, 10, 19, 38, 71, 95, 142, 190, 355, 710, 983, 1349, 1621, 1966, 2698, 3242, 4915, 6745, 8105, 9830, 13490, 16210, 18677, 30799, 37354, 61598, 69793, 93385, 115091, 139586, 153995, 186770, 230182, 307990, 348965, 575455, 697930, 1150910, 1326067, 1593443, 2186729, 2652134, 3186886, 4373458, 6630335, 7967215, 10933645, 13260670, 15934430, 21867290, 30275417, 60550834, 113134453, 151377085, 226268906, 302754170, 565672265, 1131344530, 2149554607, 4299109214, 10747773035, 21495546070]

約数ペア:

[(1, 21495546070), (2, 10747773035), (5, 4299109214), (10, 2149554607), (19, 1131344530), (38, 565672265), (71, 302754170), (95, 226268906), (142, 151377085), (190, 113134453), (355, 60550834), (710, 30275417), (983, 21867290), (1349, 15934430), (1621, 13260670), (1966, 10933645), (2698, 7967215), (3242, 6630335), (4915, 4373458), (6745, 3186886), (8105, 2652134), (9830, 2186729), (13490, 1593443), (16210, 1326067), (18677, 1150910), (30799, 697930), (37354, 575455), (61598, 348965), (69793, 307990), (93385, 230182), (115091, 186770), (139586, 153995)]