25128279

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:173

約数の個数: 64

約数和(自身を含む): 44044800

約数和(自身を除く): 18916521

約数列:

[1, 3, 9, 11, 19, 27, 33, 57, 61, 73, 99, 171, 183, 209, 219, 297, 513, 549, 627, 657, 671, 803, 1159, 1387, 1647, 1881, 1971, 2013, 2409, 3477, 4161, 4453, 5643, 6039, 7227, 10431, 12483, 12749, 13359, 15257, 18117, 21681, 31293, 37449, 38247, 40077, 45771, 48983, 84607, 114741, 120231, 137313, 146949, 253821, 344223, 411939, 440847, 761463, 930677, 1322541, 2284389, 2792031, 8376093, 25128279]

約数ペア:

[(1, 25128279), (3, 8376093), (9, 2792031), (11, 2284389), (19, 1322541), (27, 930677), (33, 761463), (57, 440847), (61, 411939), (73, 344223), (99, 253821), (171, 146949), (183, 137313), (209, 120231), (219, 114741), (297, 84607), (513, 48983), (549, 45771), (627, 40077), (657, 38247), (671, 37449), (803, 31293), (1159, 21681), (1387, 18117), (1647, 15257), (1881, 13359), (1971, 12749), (2013, 12483), (2409, 10431), (3477, 7227), (4161, 6039), (4453, 5643)]