21418892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 43352064

約数和(自身を除く): 21933172

約数列:

[1, 2, 4, 11, 22, 31, 41, 44, 62, 82, 124, 164, 341, 383, 451, 682, 766, 902, 1271, 1364, 1532, 1804, 2542, 4213, 5084, 8426, 11873, 13981, 15703, 16852, 23746, 27962, 31406, 47492, 55924, 62812, 130603, 172733, 261206, 345466, 486793, 522412, 690932, 973586, 1947172, 5354723, 10709446, 21418892]

約数ペア:

[(1, 21418892), (2, 10709446), (4, 5354723), (11, 1947172), (22, 973586), (31, 690932), (41, 522412), (44, 486793), (62, 345466), (82, 261206), (124, 172733), (164, 130603), (341, 62812), (383, 55924), (451, 47492), (682, 31406), (766, 27962), (902, 23746), (1271, 16852), (1364, 15703), (1532, 13981), (1804, 11873), (2542, 8426), (4213, 5084)]