21167019945

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{1613}}^1$

素因数の和:2087

約数の個数: 96

約数和(自身を含む): 39640872960

約数和(自身を除く): 18473853015

約数列:

[1, 3, 5, 9, 15, 23, 31, 45, 69, 93, 115, 155, 207, 279, 345, 409, 465, 713, 1035, 1227, 1395, 1613, 2045, 2139, 3565, 3681, 4839, 6135, 6417, 8065, 9407, 10695, 12679, 14517, 18405, 24195, 28221, 32085, 37099, 38037, 47035, 50003, 63395, 72585, 84663, 111297, 114111, 141105, 150009, 185495, 190185, 250015, 291617, 333891, 423315, 450027, 556485, 570555, 659717, 750045, 874851, 1150069, 1458085, 1669455, 1979151, 2250135, 2624553, 3298585, 3450207, 4374255, 5750345, 5937453, 9895755, 10350621, 13122765, 15173491, 17251035, 20451227, 29687265, 45520473, 51753105, 61353681, 75867455, 102256135, 136561419, 184061043, 227602365, 306768405, 470378221, 682807095, 920305215, 1411134663, 2351891105, 4233403989, 7055673315, 21167019945]

約数ペア:

[(1, 21167019945), (3, 7055673315), (5, 4233403989), (9, 2351891105), (15, 1411134663), (23, 920305215), (31, 682807095), (45, 470378221), (69, 306768405), (93, 227602365), (115, 184061043), (155, 136561419), (207, 102256135), (279, 75867455), (345, 61353681), (409, 51753105), (465, 45520473), (713, 29687265), (1035, 20451227), (1227, 17251035), (1395, 15173491), (1613, 13122765), (2045, 10350621), (2139, 9895755), (3565, 5937453), (3681, 5750345), (4839, 4374255), (6135, 3450207), (6417, 3298585), (8065, 2624553), (9407, 2250135), (10695, 1979151), (12679, 1669455), (14517, 1458085), (18405, 1150069), (24195, 874851), (28221, 750045), (32085, 659717), (37099, 570555), (38037, 556485), (47035, 450027), (50003, 423315), (63395, 333891), (72585, 291617), (84663, 250015), (111297, 190185), (114111, 185495), (141105, 150009)]