19912695

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 38154240

約数和(自身を除く): 18241545

約数列:

[1, 3, 5, 11, 15, 17, 31, 33, 51, 55, 85, 93, 155, 165, 187, 229, 255, 341, 465, 527, 561, 687, 935, 1023, 1145, 1581, 1705, 2519, 2635, 2805, 3435, 3893, 5115, 5797, 7099, 7557, 7905, 11679, 12595, 17391, 19465, 21297, 28985, 35495, 37785, 42823, 58395, 78089, 86955, 106485, 120683, 128469, 214115, 234267, 362049, 390445, 603415, 642345, 1171335, 1327513, 1810245, 3982539, 6637565, 19912695]

約数ペア:

[(1, 19912695), (3, 6637565), (5, 3982539), (11, 1810245), (15, 1327513), (17, 1171335), (31, 642345), (33, 603415), (51, 390445), (55, 362049), (85, 234267), (93, 214115), (155, 128469), (165, 120683), (187, 106485), (229, 86955), (255, 78089), (341, 58395), (465, 42823), (527, 37785), (561, 35495), (687, 28985), (935, 21297), (1023, 19465), (1145, 17391), (1581, 12595), (1705, 11679), (2519, 7905), (2635, 7557), (2805, 7099), (3435, 5797), (3893, 5115)]