21141528

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{653}}^1$

素因数の和:752

約数の個数: 64

約数和(自身を含む): 56505600

約数和(自身を除く): 35364072

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 71, 76, 114, 142, 152, 213, 228, 284, 426, 456, 568, 653, 852, 1306, 1349, 1704, 1959, 2612, 2698, 3918, 4047, 5224, 5396, 7836, 8094, 10792, 12407, 15672, 16188, 24814, 32376, 37221, 46363, 49628, 74442, 92726, 99256, 139089, 148884, 185452, 278178, 297768, 370904, 556356, 880897, 1112712, 1761794, 2642691, 3523588, 5285382, 7047176, 10570764, 21141528]

約数ペア:

[(1, 21141528), (2, 10570764), (3, 7047176), (4, 5285382), (6, 3523588), (8, 2642691), (12, 1761794), (19, 1112712), (24, 880897), (38, 556356), (57, 370904), (71, 297768), (76, 278178), (114, 185452), (142, 148884), (152, 139089), (213, 99256), (228, 92726), (284, 74442), (426, 49628), (456, 46363), (568, 37221), (653, 32376), (852, 24814), (1306, 16188), (1349, 15672), (1704, 12407), (1959, 10792), (2612, 8094), (2698, 7836), (3918, 5396), (4047, 5224)]