21093030

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4783}}^1$

素因数の和:4810

約数の個数: 72

約数和(自身を含む): 63808992

約数和(自身を除く): 42715962

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 4783, 9566, 14349, 23915, 28698, 33481, 43047, 47830, 66962, 71745, 86094, 100443, 143490, 167405, 200886, 215235, 234367, 301329, 334810, 430470, 468734, 502215, 602658, 703101, 1004430, 1171835, 1406202, 1506645, 2109303, 2343670, 3013290, 3515505, 4218606, 7031010, 10546515, 21093030]

約数ペア:

[(1, 21093030), (2, 10546515), (3, 7031010), (5, 4218606), (6, 3515505), (7, 3013290), (9, 2343670), (10, 2109303), (14, 1506645), (15, 1406202), (18, 1171835), (21, 1004430), (30, 703101), (35, 602658), (42, 502215), (45, 468734), (49, 430470), (63, 334810), (70, 301329), (90, 234367), (98, 215235), (105, 200886), (126, 167405), (147, 143490), (210, 100443), (245, 86094), (294, 71745), (315, 66962), (441, 47830), (490, 43047), (630, 33481), (735, 28698), (882, 23915), (1470, 14349), (2205, 9566), (4410, 4783)]