21121632225

素因数分解:

$3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{27281}}^1$

素因数の和:27368

約数の個数: 96

約数和(自身を含む): 41136890880

約数和(自身を除く): 20015258655

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 37, 45, 75, 93, 111, 135, 155, 185, 225, 279, 333, 465, 555, 675, 775, 837, 925, 999, 1147, 1395, 1665, 2325, 2775, 3441, 4185, 4995, 5735, 6975, 8325, 10323, 17205, 20925, 24975, 27281, 28675, 30969, 51615, 81843, 86025, 136405, 154845, 245529, 258075, 409215, 682025, 736587, 774225, 845711, 1009397, 1227645, 2046075, 2537133, 3028191, 3682935, 4228555, 5046985, 6138225, 7611399, 9084573, 12685665, 15140955, 18414675, 21142775, 22834197, 25234925, 27253719, 31291307, 38056995, 45422865, 63428325, 75704775, 93873921, 114170985, 136268595, 156456535, 190284975, 227114325, 281621763, 469369605, 570854925, 681342975, 782282675, 844865289, 1408108815, 2346848025, 4224326445, 7040544075, 21121632225]

約数ペア:

[(1, 21121632225), (3, 7040544075), (5, 4224326445), (9, 2346848025), (15, 1408108815), (25, 844865289), (27, 782282675), (31, 681342975), (37, 570854925), (45, 469369605), (75, 281621763), (93, 227114325), (111, 190284975), (135, 156456535), (155, 136268595), (185, 114170985), (225, 93873921), (279, 75704775), (333, 63428325), (465, 45422865), (555, 38056995), (675, 31291307), (775, 27253719), (837, 25234925), (925, 22834197), (999, 21142775), (1147, 18414675), (1395, 15140955), (1665, 12685665), (2325, 9084573), (2775, 7611399), (3441, 6138225), (4185, 5046985), (4995, 4228555), (5735, 3682935), (6975, 3028191), (8325, 2537133), (10323, 2046075), (17205, 1227645), (20925, 1009397), (24975, 845711), (27281, 774225), (28675, 736587), (30969, 682025), (51615, 409215), (81843, 258075), (86025, 245529), (136405, 154845)]