20017284

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{577}}^1$

素因数の和:657

約数の個数: 72

約数和(自身を含む): 55349280

約数和(自身を除く): 35331996

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 59, 84, 98, 118, 147, 177, 196, 236, 294, 354, 413, 577, 588, 708, 826, 1154, 1239, 1652, 1731, 2308, 2478, 2891, 3462, 4039, 4956, 5782, 6924, 8078, 8673, 11564, 12117, 16156, 17346, 24234, 28273, 34043, 34692, 48468, 56546, 68086, 84819, 102129, 113092, 136172, 169638, 204258, 238301, 339276, 408516, 476602, 714903, 953204, 1429806, 1668107, 2859612, 3336214, 5004321, 6672428, 10008642, 20017284]

約数ペア:

[(1, 20017284), (2, 10008642), (3, 6672428), (4, 5004321), (6, 3336214), (7, 2859612), (12, 1668107), (14, 1429806), (21, 953204), (28, 714903), (42, 476602), (49, 408516), (59, 339276), (84, 238301), (98, 204258), (118, 169638), (147, 136172), (177, 113092), (196, 102129), (236, 84819), (294, 68086), (354, 56546), (413, 48468), (577, 34692), (588, 34043), (708, 28273), (826, 24234), (1154, 17346), (1239, 16156), (1652, 12117), (1731, 11564), (2308, 8673), (2478, 8078), (2891, 6924), (3462, 5782), (4039, 4956)]