21167350425

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{380879}}^1$

素因数の和:380927

約数の個数: 72

約数和(自身を含む): 42978499200

約数和(自身を除く): 21811148775

約数列:

[1, 3, 5, 9, 13, 15, 19, 25, 39, 45, 57, 65, 75, 95, 117, 171, 195, 225, 247, 285, 325, 475, 585, 741, 855, 975, 1235, 1425, 2223, 2925, 3705, 4275, 6175, 11115, 18525, 55575, 380879, 1142637, 1904395, 3427911, 4951427, 5713185, 7236701, 9521975, 14854281, 17139555, 21710103, 24757135, 28565925, 36183505, 44562843, 65130309, 74271405, 85697775, 94077113, 108550515, 123785675, 180917525, 222814215, 282231339, 325651545, 371357025, 470385565, 542752575, 846694017, 1114071075, 1411156695, 1628257725, 2351927825, 4233470085, 7055783475, 21167350425]

約数ペア:

[(1, 21167350425), (3, 7055783475), (5, 4233470085), (9, 2351927825), (13, 1628257725), (15, 1411156695), (19, 1114071075), (25, 846694017), (39, 542752575), (45, 470385565), (57, 371357025), (65, 325651545), (75, 282231339), (95, 222814215), (117, 180917525), (171, 123785675), (195, 108550515), (225, 94077113), (247, 85697775), (285, 74271405), (325, 65130309), (475, 44562843), (585, 36183505), (741, 28565925), (855, 24757135), (975, 21710103), (1235, 17139555), (1425, 14854281), (2223, 9521975), (2925, 7236701), (3705, 5713185), (4275, 4951427), (6175, 3427911), (11115, 1904395), (18525, 1142637), (55575, 380879)]