21373528

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2729}}^1$

素因数の和:2835

約数の個数: 32

約数和(自身を含む): 44226000

約数和(自身を除く): 22852472

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 356, 712, 979, 1958, 2729, 3916, 5458, 7832, 10916, 21832, 30019, 60038, 120076, 240152, 242881, 485762, 971524, 1943048, 2671691, 5343382, 10686764, 21373528]

約数ペア:

[(1, 21373528), (2, 10686764), (4, 5343382), (8, 2671691), (11, 1943048), (22, 971524), (44, 485762), (88, 242881), (89, 240152), (178, 120076), (356, 60038), (712, 30019), (979, 21832), (1958, 10916), (2729, 7832), (3916, 5458)]