19852965

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{461}}^1$

素因数の和:515

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 20063835

約数列:

[1, 3, 5, 9, 11, 15, 27, 29, 33, 45, 55, 87, 99, 135, 145, 165, 261, 297, 319, 435, 461, 495, 783, 957, 1305, 1383, 1485, 1595, 2305, 2871, 3915, 4149, 4785, 5071, 6915, 8613, 12447, 13369, 14355, 15213, 20745, 25355, 40107, 43065, 45639, 62235, 66845, 76065, 120321, 136917, 147059, 200535, 228195, 360963, 441177, 601605, 684585, 735295, 1323531, 1804815, 2205885, 3970593, 6617655, 19852965]

約数ペア:

[(1, 19852965), (3, 6617655), (5, 3970593), (9, 2205885), (11, 1804815), (15, 1323531), (27, 735295), (29, 684585), (33, 601605), (45, 441177), (55, 360963), (87, 228195), (99, 200535), (135, 147059), (145, 136917), (165, 120321), (261, 76065), (297, 66845), (319, 62235), (435, 45639), (461, 43065), (495, 40107), (783, 25355), (957, 20745), (1305, 15213), (1383, 14355), (1485, 13369), (1595, 12447), (2305, 8613), (2871, 6915), (3915, 5071), (4149, 4785)]