21952695

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 19104585

約数列:

[1, 3, 5, 15, 17, 19, 23, 51, 57, 69, 85, 95, 115, 197, 255, 285, 323, 345, 391, 437, 591, 969, 985, 1173, 1311, 1615, 1955, 2185, 2955, 3349, 3743, 4531, 4845, 5865, 6555, 7429, 10047, 11229, 13593, 16745, 18715, 22287, 22655, 37145, 50235, 56145, 63631, 67965, 77027, 86089, 111435, 190893, 231081, 258267, 318155, 385135, 430445, 954465, 1155405, 1291335, 1463513, 4390539, 7317565, 21952695]

約数ペア:

[(1, 21952695), (3, 7317565), (5, 4390539), (15, 1463513), (17, 1291335), (19, 1155405), (23, 954465), (51, 430445), (57, 385135), (69, 318155), (85, 258267), (95, 231081), (115, 190893), (197, 111435), (255, 86089), (285, 77027), (323, 67965), (345, 63631), (391, 56145), (437, 50235), (591, 37145), (969, 22655), (985, 22287), (1173, 18715), (1311, 16745), (1615, 13593), (1955, 11229), (2185, 10047), (2955, 7429), (3349, 6555), (3743, 5865), (4531, 4845)]