21284692

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 44255232

約数和(自身を除く): 22970540

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 127, 143, 254, 286, 293, 508, 572, 586, 1172, 1397, 1651, 2794, 3223, 3302, 3809, 5588, 6446, 6604, 7618, 12892, 15236, 18161, 36322, 37211, 41899, 72644, 74422, 83798, 148844, 167596, 409321, 483743, 818642, 967486, 1637284, 1934972, 5321173, 10642346, 21284692]

約数ペア:

[(1, 21284692), (2, 10642346), (4, 5321173), (11, 1934972), (13, 1637284), (22, 967486), (26, 818642), (44, 483743), (52, 409321), (127, 167596), (143, 148844), (254, 83798), (286, 74422), (293, 72644), (508, 41899), (572, 37211), (586, 36322), (1172, 18161), (1397, 15236), (1651, 12892), (2794, 7618), (3223, 6604), (3302, 6446), (3809, 5588)]