21148386

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1$

素因数の和:519

約数の個数: 64

約数和(自身を含む): 51363840

約数和(自身を除く): 30215454

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 37, 42, 62, 74, 93, 111, 186, 217, 222, 259, 434, 439, 518, 651, 777, 878, 1147, 1302, 1317, 1554, 2294, 2634, 3073, 3441, 6146, 6882, 8029, 9219, 13609, 16058, 16243, 18438, 24087, 27218, 32486, 40827, 48174, 48729, 81654, 95263, 97458, 113701, 190526, 227402, 285789, 341103, 503533, 571578, 682206, 1007066, 1510599, 3021198, 3524731, 7049462, 10574193, 21148386]

約数ペア:

[(1, 21148386), (2, 10574193), (3, 7049462), (6, 3524731), (7, 3021198), (14, 1510599), (21, 1007066), (31, 682206), (37, 571578), (42, 503533), (62, 341103), (74, 285789), (93, 227402), (111, 190526), (186, 113701), (217, 97458), (222, 95263), (259, 81654), (434, 48729), (439, 48174), (518, 40827), (651, 32486), (777, 27218), (878, 24087), (1147, 18438), (1302, 16243), (1317, 16058), (1554, 13609), (2294, 9219), (2634, 8029), (3073, 6882), (3441, 6146)]