21880404

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6679}}^1$

素因数の和:6709

約数の個数: 72

約数和(自身を含む): 68082560

約数和(自身を除く): 46202156

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 182, 234, 252, 273, 364, 468, 546, 819, 1092, 1638, 3276, 6679, 13358, 20037, 26716, 40074, 46753, 60111, 80148, 86827, 93506, 120222, 140259, 173654, 187012, 240444, 260481, 280518, 347308, 420777, 520962, 561036, 607789, 781443, 841554, 1041924, 1215578, 1562886, 1683108, 1823367, 2431156, 3125772, 3646734, 5470101, 7293468, 10940202, 21880404]

約数ペア:

[(1, 21880404), (2, 10940202), (3, 7293468), (4, 5470101), (6, 3646734), (7, 3125772), (9, 2431156), (12, 1823367), (13, 1683108), (14, 1562886), (18, 1215578), (21, 1041924), (26, 841554), (28, 781443), (36, 607789), (39, 561036), (42, 520962), (52, 420777), (63, 347308), (78, 280518), (84, 260481), (91, 240444), (117, 187012), (126, 173654), (156, 140259), (182, 120222), (234, 93506), (252, 86827), (273, 80148), (364, 60111), (468, 46753), (546, 40074), (819, 26716), (1092, 20037), (1638, 13358), (3276, 6679)]