19091475

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 37778832

約数和(自身を除く): 18687357

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 61, 65, 75, 107, 117, 183, 195, 225, 305, 321, 325, 535, 549, 585, 793, 915, 963, 975, 1391, 1525, 1605, 2379, 2675, 2745, 2925, 3965, 4173, 4575, 4815, 6527, 6955, 7137, 8025, 11895, 12519, 13725, 19581, 19825, 20865, 24075, 32635, 34775, 35685, 58743, 59475, 62595, 84851, 97905, 104325, 163175, 178425, 254553, 293715, 312975, 424255, 489525, 763659, 1272765, 1468575, 2121275, 3818295, 6363825, 19091475]

約数ペア:

[(1, 19091475), (3, 6363825), (5, 3818295), (9, 2121275), (13, 1468575), (15, 1272765), (25, 763659), (39, 489525), (45, 424255), (61, 312975), (65, 293715), (75, 254553), (107, 178425), (117, 163175), (183, 104325), (195, 97905), (225, 84851), (305, 62595), (321, 59475), (325, 58743), (535, 35685), (549, 34775), (585, 32635), (793, 24075), (915, 20865), (963, 19825), (975, 19581), (1391, 13725), (1525, 12519), (1605, 11895), (2379, 8025), (2675, 7137), (2745, 6955), (2925, 6527), (3965, 4815), (4173, 4575)]