20628918

素因数分解:

$2^1\times 3^4\times {\mathrm{29}}^1\times {\mathrm{4391}}^1$

素因数の和:4434

約数の個数: 40

約数和(自身を含む): 47828880

約数和(自身を除く): 27199962

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 81, 87, 162, 174, 261, 522, 783, 1566, 2349, 4391, 4698, 8782, 13173, 26346, 39519, 79038, 118557, 127339, 237114, 254678, 355671, 382017, 711342, 764034, 1146051, 2292102, 3438153, 6876306, 10314459, 20628918]

約数ペア:

[(1, 20628918), (2, 10314459), (3, 6876306), (6, 3438153), (9, 2292102), (18, 1146051), (27, 764034), (29, 711342), (54, 382017), (58, 355671), (81, 254678), (87, 237114), (162, 127339), (174, 118557), (261, 79038), (522, 39519), (783, 26346), (1566, 13173), (2349, 8782), (4391, 4698)]